D and E
Explanation:
As we move from a higher rank to a lower rank in the taxonomic hierarchy, the degree of similarities increases.i.e. the degree of similarities increases from kingdom to species. Species contain the individual who are most similar and can interbreed among themselves.
Since, A , B and C belong to same class while C, D and E belong to same order, the degree of similarity between C,D and E will be more than that of the degree of similarity between A, B and C.
Again since C belongs to the class of A and B ,it will be more distant from D and E.
Thus D and E will be more similar than D and C or E and C.
Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts. The presence of endosymbiotic cyanobacteria provided a cell with the advantage of ________.
Answer:
The correct answer is- photosynthesis
Explanation:
According to the endosymbiotic theory, an ancestral cell engulfed a cyanobacteria and lived in symbiotic association with that bacteria and over time this bacteria evolved into the chloroplast and the ancestral cell developed into plant cell.
So as cyanobacteria was the first aerobic cell that can evolve oxygen and can do photosynthesis to produce organic food so it could be concluded that the presence of endosymbiotic cyanobacteria provided a cell with the advantage of photosynthesis.
Ron works as a custodian's helper at a school, under the supervision of the custodian. Ron can read and write his name, and can read first-grade books. He moves slowly and sometimes with difficulty. Ron most likely suffers from?
Answer:
Moderate intellectual disability
Explanation:
Ron works as a custodian's helper at a school, under the supervision of the custodian. Ron can read and write his name and can read first-grade books. He moves slowly and sometimes with difficulty.
Ron most likely suffers from a moderate intellectual disability.
Such type of people can communicate in basic and simple ways. They may have physical signs of impairment.
Approximately 10% of people with intellectual disabilities fall into this category.
What is nutrient pollution, and how does it get into the ocean? Where does it come from?
Answer:
Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae. Nutrients can run off of land in urban areas where lawn and garden fertilizers are used. When the algae and seagrass die, they decay. When it rains, the growth aids in the soil drift. These substances eventually make their way into rivers and streams. Once they reach the ocean, the many nutrients, including high levels of nitrogen, that the fertilizers are carrying are released into the water.
Final answer:
Nutrient pollution occurs when excess nutrients enter aquatic environments and disrupt the ecosystem. It can come from sources such as human sewage and agricultural runoff. This pollution leads to algal blooms, oxygen depletion, and negative impacts on marine life.
Explanation:
Nutrient pollution occurs when excess nutrients, such as nitrogen and phosphorus, enter aquatic environments and cause an imbalance in the ecosystem. This pollution can come from various sources, including human sewage, agricultural runoff, and industrial discharges.
Human sewage can throw ecosystems out of balance by introducing high levels of nitrogen and phosphorus, which act as fertilizers for algae in the water. The excessive growth of algae leads to algal blooms, which deplete oxygen levels in the water and harm other aquatic organisms. This imbalance in nutrient cycles, particularly the nitrogen and phosphorus cycles, can disrupt the normal functioning of the ecosystem.
Agricultural runoff can also have detrimental effects on ecosystems. When fertilizers and pesticides used in agriculture are washed away by rain or irrigation, they can enter water bodies and contribute to nutrient pollution. This excess of nutrients can cause eutrophication, where algal blooms occur and deplete oxygen levels in the water, leading to dead zones where marine life cannot survive. These changes in the food web can result in a decline in fish populations and overall ecosystem health.
Siamese cats are characterized by light and dark regions of fur. The darker parts occur on the cooler parts of the cat's body because the enzyme that catalyzes the formation of the dark pigment is more active when cool. This example shows that enzymes are affected by .
Answer:
The correct answer is : temperature.
Explanation:
Siamese cats are known and characterized on the basis of the regions that are light or dark on the part of the body of these cats as according the cooler part of the body.
It is influenced by the enzyme that is active due to low temperature that leads to the formation of the dark pigment in the cooler area and in the part of the body that are higher in temperature are lighter due to inactivity of the enzyme.
Thus, the correct answer is : temperature.
Answer:
Temperature
Explanation:
I did the study island and got it right : )
Enzyme secreted in saliva that breaks starch into smaller particles and eventually into the disaccharide maltose Hormone secreted by the beta cells of the pancreas in response to increased blood levels of glucose. Hormone secreted by the alpha cells of the pancreas in response to decreased blood levels of glucose. Sucrose is commonly known as ______ Most common sucralose-based product ______. Fatty acids that must be consumed in the diet because they cannot be made by our bodies. Amino acids not produced by the body that must be obtained from food. Enzyme in the stomach that begins the breakdown of proteins into shorter polypeptide chains and single amino acids. Two or more foods that together contain all nine essential amino acids necessary for a complete protein. Molecule consisting of three fatty acids attached to a three-carbon glycerol backbone.
Explanation:
Sucrose is a disaccharide sugar, which means it is comprised of two monosaccharide sugar units. Sucrose is a characteristic synthetic found in plants, despite the fact that it can likewise be synthesized in a lab. It is a lot simpler and less expensive to extract it from plants than to make it without any preparation. Sugarcane and sugar beets are the two plants that are utilized to make most sucrose, or refined table sugar. Splenda is a manufactured sugar that isn't perceived by the body. Sucralose just makes up around 5 percent of Splenda. The other 95 percent contains a building operator called maltodextrin, which fills in as filler, and corn-based dextrose, a sort of sugar. Splenda is utilized as a sugar substitute in cooking and preparing, and it's additional to a great many "zero calorie" nourishment items.
Amylase initiates starch digestion in the mouth, forming maltose, while other enzymes like maltase continue the process in the small intestine. Essential nutrients like fatty acids and amino acids must be consumed in the diet, and pepsin is an enzyme that aids in protein digestion in the stomach. Triglycerides serve as a significant energy storage molecule in the body.
Explanation:Throughout the process of digestion, various enzymes and hormones play essential roles in breaking down the food we eat into usable nutrients. One such enzyme is amylase, which is secreted in the saliva and begins the digestion of starches by breaking them into smaller particles, eventually forming the disaccharide maltose. Once the food reaches the duodenum, pancreatic juices containing more amylase continue this breakdown. Disaccharides like maltose, sucrose, and lactose are further digested into monosaccharides (glucose, fructose, and galactose) by the enzymes maltase, sucrase, and lactase present in the small intestine.
As part of the dietary macronutrients required by our body, essential fatty acids and essential amino acids must be obtained through food, as our bodies cannot synthesize them. The digestion of proteins begins in the stomach, where the enzyme pepsin initiates the breakdown of proteins into shorter chains and amino acids. Combinations of different food sources, such as beans and rice, can provide all nine essential amino acids and are known as complementary proteins. Lastly, a triglyceride is a molecule consisting of three fatty acids attached to a glycerol backbone, serving as an important form of energy storage in our bodies.
Tim was admitted for anemia associated with a malignant carcinoma of the left lung. He received treatment for the anemia at this time. The principal diagnosis is theTim was admitted for anemia associated with a malignant carcinoma of the left lung. He received treatment for the anemia at this time. The principal diagnosis is the
Answer:the principal diagnosis is carcinoma.
Explanation:
This is because this types of cancer destroy the ability of the bone marrow to make healthy blood cells, this in turn results in anaemia.
The principal diagnosis referred to in this case is the malignant carcinoma of Tim's left lung. The anemia he is experiencing is secondary, associated with his primary condition, and was treated alongside the lung cancer. His condition may cause his immune system to be compromised, similar to the case of Benjamin.
Explanation:The principal diagnosis in this case is the malignant carcinoma of the left lung. The admission was prompted by anemia associated with the condition, but the anemia is secondary to the lung cancer. Carcinoma refers to a type of cancer that starts in cells that make up the skin or the tissue lining organs, such as the lungs. In this case, these malignant cells are present in the lung, hence the 'malignant carcinoma of the left lung', which is the primary disease being treated. Tim's anemia was also managed at the same time, as it is a critical symptom directly related to his lung cancer.
Similar to the case of Benjamin, anemia can be caused by various reasons such as overproduction of non-functional leukocytes or side-effects from chemotherapy. Benjamin's immune system was compromised due to his chronic myelogenous leukemia and chemotherapy, which limited his ability to fight off infections. This is something that may also affect Tim, considering his compromised state stemming from the carcinoma and the subsequent anemia.
Anemia, the condition linked to the primary diagnosis, is characterized by a deficiency in the number or quality of red blood cells in the body. Stem cells from bone marrow are crucial components in the process of generating new blood cells, hence, their importance in treating severe forms of anemia and some types of cancer.
Learn more about Malignant Carcinoma of the Lung here:https://brainly.com/question/31562280
#SPJ11
In the Morse code, a series of two signal types (dots and dashes) code for 26 different letters of the alphabet. How is this analogous to the genetic code? Select one: a. The bases that make up DNA are coded by the sugar-phosphate backbone. b. The machinery involved in DNA synthesis is analogous to the telegraph equipment used in sending Morse code. c. The bases of DNA code for the more complex amino acid sequence of the proteins in cells. d. There is complementarity in the genetic code (A is complementary to T, and C is complementary to G).
Answer:
c. The bases of DNA code for the more complex amino acid sequence of the proteins in cells.
Explanation:
The genetic code is the set of rules used by living cells to translate information encoded within genetic material e.g codons, into proteins.
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes. Morse alphabets have been developed for many non-English natural languages that use letters other than the 26 Roman letters.
The genetic code is to genetics what Morse code is to telecommunications.
Imagine that you are a cell and you want to join two low energy molecules together. They resist joining. What two special types of molecules would you need to supply to overcome this obstacle?
Answer:
an enzyme and ATP
Explanation:
An enzyme is the term that is used for the catalysts in the living system which work to lower the activation energy of a reaction and hence, accelerate the rate at which the chemical reactions can occur.ATP is an organic molecule - Adenosine triphosphate which is responsible for providing energy to drive different processes in the living organisms, and thus, is also known as the energy currency of the cell.In the given case, the molecules that are to be joined have low energy and a resistance to come together, in such a situation the ATP will provide the energy for the molecules to come together and the enzymes will help orient the molecules in a suitable manner and accelerate the rate of reaction to ultimately join them.Plant cells - chloroplast - chlorophyll. All are needed for photosynthesis. Where does most of the photosynthesis take place in the plant?
A.Flower
B) fruit
C) leaves
D) stem
Answer: Option C) leaves
Explanation:
Autotrophs including green plants consists of cells that have chloroplasts, these chloroplasts possess a green coloured pigment called chlorophyll that are abundant in the leaves, and helps in receiving trapping sun light among other simple inorganic molecules like atmospheric carbon dioxide and water, necessary for the synthesis of sugar molecules during the process of photosynthesis.
Thus, the abundant presence of chlorophyll in leaves makes photosynthesis occur more in leaves
C) leaves Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen. the plant cells are found in the leaves
The more than 500 species of fruit fly on the various Hawaiian Islands, all apparently descended from a single ancestral species, are an excellent example of __________.
Answer:
Adaptive radiation
Explanation:
adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges, or opens new environmental niches.
Describe a multicellular exocrine gland
Answer:
They are produced or originated from an epithelial sheet(like the endocrine glands) but will never lose the duct connecting them to the free surface of the epithelial sheet (surface of the skin or lumen of the open body cavities. They transport their product through a duct on the epithelial surface.
They transport their product through a duct on the epithelial surface.
An exocrine gland that has an unbranched duct would be classified as a multicellular simple gland correct multicellular exocrine glands with unbranched ducts are simple those with branched ducts are compound unicellular exocrine glands do not have ducts
Some nematode worms suck plant juices from the roots of plants and are economically important agricultural pests. Some fungi are usually decomposers of plant material, but some trap and kill nematodes at times. Arthrobotrys traps and kills nematodes, especially when they lack nitrogen sources. These two facts suggest that farmers could find Arthrobotrys an important tool in combating nematode infestations. Which of the following research questions would make a good starting point for developing such a defense against plant-sucking nematodes?A. What mechanisms do nematodes have that could allow them to escape from Arthrobotrys?B. Does nitrogen fertilization of crops affect the likelihood that ArthrobotrysC. What is the evolutionarily oldest method of trapping nematodes?D. Do nitrogen-fixing bacteria provide nitrogen to the fungi?
Answer:
A. What mechanisms do nematodes have that could allow them to escape from Arthrobotrys?
Explanation:
Since the research question has to do with likely defense mechanisms of nematodes against the traps and death from Arthrobotrys, option A seems like the most plausible option out of all the options.
Option B seems incomplete while C and D have no direct relation with defense mechanism of nematodes against Arthrobotrys.
Jasper has been sleeping for about 90 minutes when his brain shows rapid, irregular waves. His blood pressure rises, his heart rate increases, and his skeletal muscles go limp. Which of the following is the most likely conclusion?a. Jasper is chronically sleep-deprived and his sleep, like his daytime activities, is abnormal.
b. Jasper is experiencing physiological changes that are normal for the third stage of sleep.
c. Jasper is experiencing unusual sleep because during the day he engaged in strenuous physical activities.
d. Jasper is experiencing physiological changes that are normal during REM sleep.
Answer:
d. Jasper is experiencing physiological changes that are normal during REM sleep.
Explanation:
Rapid Eye Movement Sleep (REM), also referred to as paradoxical sleep, is a state of sleep in the normal sleep cycle, which involves active movement of the muscles of the eyes, and the diaphragm, as well as increased brain activity. However, the skeletal muscles are relaxed. This type of sleep is characterized by vivid dreams as brain activity is intense, although there is absence of no motor function during this sleep.
We can conclude that, the physiological changes experienced by Jasper are normal during REM sleep.
What is the difference between breathing and respiration
Answer:
Respiration is a chemical process while Breathing is a physical process.
Explanation:
Respiration can be said to be a continuous supply of oxygen molecules obtained from air or water. Oxygen here breakdown glucose in order to generate energy used by an organisms cell to function.
While Breathing is simply known to be an inhale and exhale process that takes place in the lungs.
Breathing refers to the physical process of inhaling oxygen and exhaling carbon dioxide, while respiration is a cellular biochemical process that breaks down food substances to produce energy.
Explanation:Although breathing and respiration are often used interchangeably, they refer to two distinct biological processes. Breathing refers to the process of inhaling oxygen from the environment and exhaling carbon dioxide back, which is a physical process. It involves the movement of air into and out of the lungs. This process is known as ventilation.
On the other hand, respiration is a chemical process that takes place in the cells. It involves a series of biochemical reactions that break down food substances to produce energy, releasing carbon dioxide as a byproduct. This energy is used by cells to function and support growth and other bodily activities. It is crucial to note that respiration, unlike breathing, does not involve the exchange of gases; instead, it is about the chemical transformation within cells.
Learn more about Breathing and Respiration here:https://brainly.com/question/32448379
#SPJ2
There are amphibians that are even larger than bullfrogs. Which of the following could explain how such a large amphibium could obtain a sufficient rate of diffusion of respiratory gases? Select all that apply: Select one or more: a. different shape (e.g. flat or ribbon shaped) b. dry skin c. reduced metabolic rate (reduced rate of cellular respiration) d. larger internal surface area of the lungs e. living in an environment of lower oxygen concentration
Answer:
a. different shape (e.g. flat or ribbon shaped).
d. larger internal surface area of the lungs.
Explanation:
Amphibians are cold blooded animals. They have a low rate of metabolism . Amphibians are located most where there is water or in moist environment because of their skin and how important it is to keep their skin moist.
Amphibians breathe through their skin and this can be called cutaneous respiration. Their lungs are not well developed therefore they undergo a very slow diffusion of oxygen through their blood.
For Amphibians that are larger than bull frogs, they obtain a very sufficient rate of diffusion of gases due to the following reasons:
a. Internal surface area of the lungs: Amphibians that are larger than bull frogs tend to have a more developed respiratory organs which means there lungs have a larger surface area and they are well developed.
b. They have a different body shape: Amphibians larger than bull frogs could have a flat or ribbon shape and their body shapes make it easier for respiratory gases like oxygen to permeate or enter their skin easily.
Large amphibians can adapt to ensure sufficient gas exchange via a few means: a different body shape to maximize surface area, a reduced metabolic rate to lower the demand for oxygen, and a larger internal surface area of the lungs for increased gas exchange sites. Dry skin and lower oxygen concentration environments are not beneficial for this process.
Explanation:In the context of Biology, amphibians rely on respiration through their skin and lungs to obtain oxygen. Therefore, large amphibians may have certain adaptations to ensure the efficient diffusion of respiratory gases. Some potential adaptations include:
Different shape: A flattened or ribbon-like shape can allow for a larger surface area in relation to its volume, encouraging more efficient oxygen diffusion.Reduced metabolic rate: By slowing down the metabolic reactions, they can reduce the demand for oxygen.Larger internal surface area of the lungs: A greater lung surface area allows for more sites where gases can be exchanged.Note that dry skin and lower oxygen concentration environment are not beneficial adaptations for gas exchange, as dry skin restricts gas exchange and a low oxygen environment would reduce the overall available oxygen for the amphibian.
Learn more about amphibian adaptation here:https://brainly.com/question/31866498
#SPJ3
Metabolism using an electron transport system is classified based on the nature of the initial electron donors and terminal electron acceptors. Lithotrophy uses __________ molecules as the __________ electron __________. Choose one: A. organic; initial; donors B. inorganic; final; acceptors C. organic; final; acceptors D. inorganic; initial; donors
Answer: C organic; final; accpetors
"After glycolysis, the fate of pyruvate depends on whether or not the cell has access to oxygen. Discuss the potential fates of pyruvate in the presence and absence of oxygen."
Answer:
Fate of pyruvate in the presence of oxygen:
-conversion to oxaloacetate by pyruvate carboxylase (biotin).
-conversion to Acetyl-CoA by Pyruvate dehydrogenase.
Fate of pyruvate in the absence of oxygen:
-conversion to lactate by lactic acid dehydrogenase.
Explanation:
Oxaloacetate can replenish the TCA cycle intermediates and be used as a substrate for gluconeogenesis.
Acetyl-CoA, which is formed by oxidative decarboxylation of pyruvate by the pyruvate dehydrogenase complex, is a major fuel used in the TCA cycle. Acetyl-CoA is also a building block for fatty acid synthesis.
Lactate, formed by the action of lactate dehydrogenase, is the final product of anaerobic glycolysis in eukaryotic cells. The formation of lactate is the major fate for pyruvate in the lens and cornea of the eye, kidney medulla, testes, leukocytes, and red blood cells, because these are all poorly vascularized and/or lack mitochondria.
Which of the following is the correct sequence that describes the excitation and contraction of a skeletal muscle fiber? 1. Tropomyosin shifts and unblocks the cross-bridge binding sites. 2. Calcium is released and binds to the troponin complex. 3. Transverse tubules depolarize the sarcoplasmic reticulum. 4. The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from atp. 5. An action potential in a motor neuron causes the axon to release acetylcholine
Answer: The correct sequence is 5-3-2-1-4.
Explanation:
The signals from the motor neurons are released which helps in releasing the acetylcholine.
The depolarized sarcoplasmic reticulum which releases calcium ions.
The released calcium ions gets attached to the troponin complex. Due to this binding the tropomyosin shifts and unblocks the cross bridge.
The thin filaments are attached to the thick filaments by the help of the head of myosin using the energy generated from ATP.
The correct sequence of excitation and contraction in a skeletal muscle fiber begins with the release of acetylcholine from a motor neuron, followed by the depolarization of the sarcoplasmic reticulum, binding of calcium to the troponin complex, shifting of tropomyosin, and ratcheting of thin filaments across the thick filaments.
Explanation:Your question pertains to the sequence of excitation and contraction in a skeletal muscle fiber. The correct sequence is as follows:
An action potential in a motor neuron causes the axon to release acetylcholine. Transverse tubules depolarize the sarcoplasmic reticulum. Calcium is released and binds to the troponin complex. Tropomyosin shifts and unblocks the cross-bridge binding sites. The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from ATP.
This process initiates the sequence that leads to muscle contraction. Each step in the sequence is essential for the contraction of the muscle fiber, and any disruption in the sequence could impair muscle function.
Learn more about muscle contraction here:https://brainly.com/question/33888889
#SPJ6
In many tissues, one of the earliest responses to cellular injury is a rapid increase in the level of enzymes involved in the pentose phosphate pathway. Ten days after an injury, heart tissue has levels of G6PD and 6-phosphogluconate dehydrogenase that are 20 to 30 times higher than normal, whereas the levels of glycolytic enzymes are only 10 to 20% of normal. Suggest an explanation for this phenomenon.
Explanation:
Ten days after an injury, there is still cellular and tissue repair going on. Glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase are two enzymes involved in the pentose phosphate pathway which are also found in abundance in neutrophils and macrophages. These phagocytic cells of the immune system utilize NADPH to generate superoxide radicals from molecular oxygen, which are used to kill the pathogens or damaged cells they have ingested. The great rise in these two enzymes could be coming from these immune cells as they are cleaning up the damaged tissue. Additionally, these immune cells use these two enzymes to produce NADPH, which can be used to counterbalance oxidative stress via the action of the glutathione system. Injured tissue can cause oxidative stress and increase the need for action from the glutathione system. The glycolytic enzyme activity would be decreased as some of the glucose is shunted to the pentose phosphate pathway to favor tissue repair over the ATP generation which comes from the glycolytic pathway reactions.I believe the answer is "A". Please correct me.
Which statement best describes the role of animals in the water and carbon cycles?
Select one:
a. Animals release carbon dioxide and water vapor as a by‐product of cellular respiration.
b. Animals release carbon dioxide and water vapor as a by‐product of photosynthesis.
c. Animals take in carbon dioxide and oxygen during cellular respiration.
d. Animals use oxygen to perform photosynthesis and release carbon dioxide as a by‐product.
Answer:
The right answer is A
Explanation:
Because animals take in sugar and oxygen, break them down and release carbon dioxide and water along with ATP as usable energy.
Answer:
i think its actually b
Explanation:
Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as a(n)
A) competitive inhibitor of the enzyme.
B) noncompetitive inhibitor of the enzyme.
C) allosteric activator of the enzyme.
D) cofactor necessary for enzyme activity.
E) coenzyme derived from a vitamin.
Answer:
D) cofactor necessary for enzyme activity.
Explanation:
Carboxypeptidase is an enzyme found in the digestive system whose function is to hydrolyze a peptide bond in the terminal carbon of a protein. Said enzyme contains a zinc atom in its active site and when losing a zinc atom it would lead to loss of the activity of the enzyme, making it of great importance for the activity of the enzyme.
When explaining how carbon dioxide combines with water to form carbonic acid as part of an acid-base lecture, the faculty instructor emphasizes that which enzyme is needed as a catalyst for this reaction?
Answer:
Carbonic anhydrase is the enzyme that convert the Carbon dioxide and water into carbonic acid.
Explanation:
When aqueous form of carbon dioxide reacts with water,it produces carbonic anhydrase which is acidic.
The reaction is-
H₂O+CO₂⇒H₂CO₃
Carbonic acid is a volatile acid which play an important role in bicarbonate buffer system and thus it maintains acid base level.
Carbonic acid is a weak acid that form 2 type of salts that are carbonate and bicarbonate.
Carbonic acid causes dissolve of limestone.
It can't exist in pure form.
Rocio and Thomas have three sons. Rocio is pregnant with another son. Research on the older-brother effect indicates that the chances of the fourth son being homosexual is ________ percent.
Explanation:
The term Homosexuality was given by a German psychologist, Karoly Maria Benkert in 19th Century.Homosexual are the person who are sexually attracted to people of their own sex. Lesbian is the term used for females and Gay is the term used for males who are homosexual.An individual's sexual orientation is difficult for the scientist to determine. It can be due to the factors such as environmental, hormonal etc.
What is the lineage of a jawless vertebrate?
Answer:
Lamprey (agnathans) is the lineage of a jawless vertebrate.
Explanation:
Lampreys are jawless fishes (or agnathans), closely related to other living vertebrates, the jawed vertebrates (or gnathostomes). They, along with hagfish, are the only known surviving lineage of once diverse groups of jawless fishes. Living cyclostomes are modern yet they have some anatomic elements that appear to be retained from primitive members of their own groups, and possibly of primitive ancestral vertebrates. Lampreys are readily obtainable, and comparisons between lampreys and vertebrates are useful for the identification of developmental traits that are putatively derived from ancestral vertebrates. Of the two cyclostome groups, lampreys are the more experimentally tractable developmental models, and work has been done on a variety of species.
In addition to discrete, Mendelian traits, we have many traits that are influenced by genes on several different chromosomes. These are called ___________ traits:
Answer: Polygenic inheritance
Explanation: Polygenic inheritance is when a character is controlled by more than two genes. This inheritance includes skin color,eyes color,hair color,height non visual genes such as blood pressure,intelligence Autism and longevity.
Question 5
The process where one group of species is replaced with others over time is called _____.
a. Climax community
b. Natural selection
c. Ecological succession
d. Evolution
Ecological succession is a biological process where one group of species is gradually replaced with another over time. It's a key mechanism of the diversity in ecosystems. For example, after a wildfire, grasses may first colonize the land then be replaced by shrubs and eventually trees.
Explanation:The process where one group of species is replaced with others over time is called ecological succession. This biological phenomenon happens when an ecological community undergoes a series of changes which leads to the replacement of one group of species by another group. For instance, after a wildfire, the land may initially be colonized by grasses, then shrubs and eventually trees. In each stage of the process, the existing community modifies the environment in ways that make it suitable for the next stage. This constant process is what shapes the diverse ecosystems.
Learn more about Ecological Succession here:https://brainly.com/question/32844565
#SPJ3
the bone marrow of the skeletal system produces lymphocytes which belong to what system
Answer: Immune system
Explanation:
Lymphocytes are a class of white blood cells (leukocytes) involved in immune response when activated by the a foreign molecule (an antigen). B lymphocytes develop in the bone marrow of mammals and are responsible for the production of circulating antibodies.
Thus, lymphocytes are associated with the immune system.
Answer: It belongsto the lymphatic system
Explanation: I studied this in the 10th grade.
Chlorophyll molecules donate electrons to an electron acceptor ____.
Explanation:
Chlorophyll molecules donate electrons to an electron acceptor in the reaction center.The "energized."is also known as when the photon makes an electron in the chlorophyll . The vitality given to the electron at that point goes starting with one shade atom then onto the next until it arrives at a couple of chlorophyll a particles called the reaction center. When Electrons of a Chlorophyll Molecule are eager to a higher vitality level, They are moved to a Primary Electron Acceptor. Chlorophyll helps this exchange as when chlorophyll ingests light vitality, an electron in chlorophyll is energized from a lower vitality state to a higher vitality state. This electron is more readily transferred to another molecule.What is an essential component of all viruses?
Answer:
See the answer and explanation below, please.
Explanation:
Viruses may have RNA or DNA genetic material. Those who have wrapping, this is composed of proteins, which is called capside.
WILL BE MARKED BRAINLIEST!!!!
Amino acid-derived and peptide hormones are unable to diffuse across a cell membrane because they are _____.
a. large
b. too complex
c. lipid-based
d. not easily dissolved in blood
e. polar
Answer: Option E) polar
Amino acid-derived and peptide hormones are unable to diffuse across a cell membrane because they are polar
Explanation:
Amino acid-derived and peptide hormones such as serotonin, epinephrine, dopamine etc, are unable to diffuse across a cell membrane because they consist of several repeating units of amino acids with positively charged or negatively charged side chains.
Thus, the side chains make these hormones water-loving (hydrophilic), and impassable to the hydrophobic layer of the cell membrane.