Answer:
transition metals
Hello There!
The element in group 3 through 12 of the periodic table are the "Transition Elements" this should also be known as the transition medals.
These metals have electrons that can participate in the formation of chemical bonds.
1. Two animals are mated. One is homozygous dominant for one character and homozygous
recessive for another. The other animal is heterozygous for both characters. How many
phenotypes are expected in the offspring of this cross?
From a cross of homozygous dominant and homozygous recessive parent lines with heterozygous parents, a 1:1 phenotypic ratio is seen. Two types of phenotypes will form.
What is a dihybrid cross?A dihybrid cross involves two traits. Example: an animal with both genes for height and body coloration is taken . The height is represented as T. T is for tall characters, and t is for short characters. A homozygous dominant character is represented as TT. Homozygous recessiveness is expressed by tt.
Another gene such as body coloration is taken. Black (B) is dominant over white (b). An animal with homozygous dominant is BB. An animal having homozygous recessive is bb.
A parent with homozygous dominant for tall character and homozygous recessive for body colour is represented by TTbb. An animal that is heterozygous for height and body coloration is taken as TtBb.
From the crossing, two phenotypes are derived, such as tall black and tall white. Out of all eight individuals, four are tall black and four are tall white. The phenotypic ratio is 1:1. The cross is explained below.
Hence, two types of phenotypes will be formed with a phenotypic ratio of 1:1.
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A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of . The mutation will lead to .
Answer:
The research is an example of evolutionary genetics and the mutation will result in fewer bacteria becoming resistant to the particular antibiotics.
Explanation:
A branch of science that comprises the study of genetic changes, which results in evolutionary modifications in organisms is known as evolution genetics. As certain bacteria had modified their DNA and had resulted in the development of antibiotic resistance.
Because of antibiotic resistance, some bacteria in which modifications in the DNA has occurred became resistant against certain kind of antibiotics and those antibiotics are no longer efficient in killing or preventing their growth.
Answer:
A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of evolutionary genetics . The mutation will lead to all the bacteria becoming resistant to the specific antibiotics
Explanation:
PLATO answer
what do bacteria have in common with cells of other living organisms?
a. no water
b. all the same size
c.contain paramecium
d.contain cytoplasm
Rainbow trout is non-native to the United States. However, this species is breeding with the native Gila trout. Scientists recently observed that the Gila trout were becoming extinct. What is the cause of their extinction?
A. Climate change
B. Disease
C. Preying
D. Hybridization
Answer: C. Preying
Explanation:
A non-native species is the species which is introduced to a new ecosystem. This species is introduced intentionally or accidentally to a new ecosystem by human beings or they may enter to the ecosystem by their own.
A non-native species can be invasive which means it can compete with the native species for resources like shelter, food and mates.
According to the given situation, the Gila trouts being the native species has been affected by the non-native Rainbow trout. This may be because of the fact that non-native species can be invasive for the native species. As the species is used as mate by the non-native species and they may become the prey of non-native species. This has resulted in the extinction of the species of Gila trouts.
"The correct answer is D. Hybridization. The most accurate answer to the question of why the Gila trout are becoming extinct, given the context of breeding with non-native rainbow trout, is hybridization.
Hybridization occurs when two different species interbreed. In this case, the non-native rainbow trout is breeding with the native Gila trout. This can lead to the dilution of the native species' gene pool, which can result in a loss of genetic diversity and the unique adaptations that allow the native species to thrive in its environment. Over time, if the native species' genetic material is overwhelmed by that of the non-native species, the native species can effectively become extinct as it no longer exists in its original, pure form. This process can also lead to the creation of offspring that are less fit for survival, further threatening the native species' population.
The other options provided do not directly address the scenario described:
A. Climate change can indeed contribute to the decline of species, but the question specifically mentions the breeding of rainbow trout with Gila trout, pointing to hybridization as the direct cause.
B. Disease can also lead to the decline or extinction of species, but again, the question directly attributes the cause to the interbreeding of the two trout species.
C. Preying might affect the population of a species, but it would not lead to the genetic absorption of one species into another, which is the process indicated by the scenario.
Therefore, the most accurate answer to the question of why the Gila trout are becoming extinct, given the context of breeding with non-native rainbow trout, is hybridization."
1.) Compare the roles of oxygen and carbon dioxide in autotrophs and heterotrophs. Which organism is an oxygen consumer and carbon dioxide producer? Which organism is an oxygen producer and a carbon dioxide consumer?
Oxygen is used by both autotrophs and heterotrophs to release energy from glucose (as we know, the bonds between organic compounds can be used to release energy) in a process known as cellular respiration. Carbon dioxide, however, is predominantly used in autotrophs to perform photosynthesis because they cannot get their food any other way. The type of organism that is both an oxygen producer and carbon dioxide consumer is an autotroph. This is because they release oxygen during photosynthesis and require carbon dioxide to perform photosynthesis.
I hope I helped!
Oxygen is used by both autotrophs and heterotrophs to release energy from glucose in a process known as cellular respiration.
Carbon dioxide is predominantly used in autotrophs to perform photosynthesis.
An autotroph is because they release oxygen during photosynthesis and require carbon dioxide to perform photosynthesis.
What are Autotrophs and Heterotrophs?Autotrophs are those organisms, that are known to make their own food in the presence of sunlight. Example- Plants
Heterotrophs are those organisms that use the food that comes from the other organism in the form of fats, proteins, and carbohydrates. These organisms that feed on other are called as heterotrophs.
Thus, Carbon dioxide, however, is predominantly used in autotrophs to perform photosynthesis because they cannot get their food any other way. The type of organism that is both an oxygen producer and carbon dioxide consumer is an autotroph.
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Consider the classification levels of a human. Eukarya ,Animalia ,Chordata ,Mammalia ,Primates, Hominidae ,Homo ,sapiens .Which is the most specific taxonomic level in the classification system above?
A sapiens
B Homo
C Hominidae
D Primates
Answer:
It’s “A” Sapiens
Explanation:
Answer:
((A)) Sapiens
Explanation:
Which condition is required for viruses to reproduce
Answer:
B, they must enter the cell of another organism.
Viruses are nonliving, meaning they cannot reproduce with other viruses. It must have a host cell to inject it's DNA into in order to reproduce.
Explanation:
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matching
1. bulbs Onions and garlic reproduce using these. 2. corms Strawberry plants and Bermuda grass have these stems that produce other stems and leaves on top and roots on bottom. 3. rhizomes These are fleshy, enlarged stems like the potato. 4. stolons Banana trees and bamboo have these horizontal stems that can divide and grow in several directions at once. 5. tubers Gladiolus and freesia plants have these special stems that are short and fleshy with a bud for growth of new stems and leaves and an area on the bottom for root growth.
Answer:
1. bulbs - Onions and garlic reproduce using these
2. corms = Gladiolus and freesia plants have these special stems...
3. Rhizomes - Banana trees and bamboo have these horizontal...
4. Stolons - strawberry plants and Bermuda grass...
5. Tubers - Fleshy, enlarged stems like the potato
Explanation:
Bulbs are made up of layers and layers of modified leaves called scales. These scales provide the nutrition for the growing plant. They have roots at the bottom that anchor the plant.
Corms are similar to the bulb but they are more solid and do not have scales. They are kind of round but with a flat top. As the leaves of the plant grow, the corm shrinks until it is gone. New corm grow from the buds that grow out of the original corm.
Rhizomes are underground stems. They are fleshy and they grow horizontally. Eyes or buds grow around the rhizomes sometimes on the side or on top. Other examples would be irises and ginger.
Stolons are also known as runners. They creep or grow horizontally. They usually grow on the surface, but can also grow underground, just below the surface. These roots grow nodes where each node grows roots which become new plants.
Tubers are fat and round and do not grow horizontally. Instead, they stem out of the eyes and each shoot can become a new plant. You can cut them into pieces to propogate them, as long as there is at least one eye on the replanted piece.
Bulbs, corms, rhizomes, stolons, and tubers are all specialized stems that plants use for asexual propagation, allowing them to produce new individuals without seed formation.
Bulbs: Onions and garlic are examples of plants that reproduce using these. They are underground stems with fleshy scales, where each bud can form new offsets or individual plants.Corms: Corms are used by plants like gladiolus and garlic; they are solid tissue and used for asexual reproduction.Rhizomes: Ginger and iris are examples of plants that produce masses of stems known as rhizomes. These horizontal stems can give rise to multiple plants.Stolons: Also known as runners, strawberry plants produce these stems at the soil surface or below ground, which can give rise to new plants.Tubers: Potatoes are an example of a plant that forms fleshy stem tubers. Each eye in a stem tuber can sprout and grow into a new plant.out of hypothesis,theory and law, which ocurrs before the experiment is completed?
Answer: (Hypothesis)
(Basically before you complete a scientific experience you want to create or make a guess on what the outcome result is gonna end up as. A hypothesis is basically a wild guess or a estimate of what YOU think the outcome result is gonna be)
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Any particular element can always be identified by its
Answer:
Number of protons
Explanation:
Any particular element can always be identified by its number of protons.
how are meiosis and mitosis different
The wings of insects, birds, and bats evolved independently but carry out similar functions. This is an example of
A. analogous structures.
B. embryonic structures.
C. vestigial structures.
D. homologous structures.
Answer:
Analogous structures
Explanation:
Analogous structure may be defined as the structures that do not have similar origin but perform same functions.
The wings of birds, bats and insects evolve independently but have same superficial structure and performs same function. Thus, they are the example of analogous organ.
Thus, the correct answer is option (A).
Answer:
Analogous structure.
Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. What type of rock is coquina?
Answer: sedimentary.
Answer:
Sedimentary rock
Explanation:
The Coquina rock is a sedimentary rock that is comprised of broken fragments of the shells of ancient trilobites, invertebrates, and brachiopods. When the sediments were deposited, and shells were also added on it, they have undergone compaction and lithification, as a result of which these rocks were formed. They are generally classified as the soft limestone rocks, that are typically formed in the marine and lacustrine environments, where the flow energy is very high.
Thus, Coquina is a sedimentary limestone rock.
Pitcher plants are cup-shaped plants that contain a pool of liquid that helps digest food. Their brightly colored leaves attract insects, which get trapped in
the digestive liquid. The plants absorb nutrients from the captured insects. Which type of relationship is represented in this situation?
OA
predation
OB. commensalism
parasitism
OD. mutualism
Reset
Next
Answer:
b. commensalism I believe
Answer:
Predation
Explanation:
It is a clear case of predation. Predation is a type of relationship between two organisms in which one organism feeds upon another one causing its the death. The one which feeds upon another one is a predator while other one which is killed is a prey. That means in predation one organism is benefited while another one is harmed. Parasitism and predation are somehow related but the difference between both of them is that in predation, one organism is killed by another one but in parasitism the organism which gets benefited does not kill the host because by doing this it can get benefits from the host for a longer time period.
Other options are wrong. Commensalism is a type of relationship in which one organism is benefited while another one is not affected means derives neither benefit nor harm. So, option B is wrong.
Parasitism is a type of association between two organisms in which one is benefited but another one is harmed without being killed. So option C is incorrect.
Mutualism is a type of association between two organisms in which both of them get benefited out of each other. So option D is also incorrect.
cedure,
© Data:
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Table 1: Positive and Negative Results When I
Macromolecule
regative Results When Testing for the Presence of Macromolecules
Chemical Test | Positive Test Result Negative T
Carbohydrates – Simple
Sugars
e negizitive
Carbohydrates – Starch
Proteins
Lipids
Table 2: Results for the Presence of Macromolecules in the Evidence Sample
Answer:
What is the question?
Explanation:
Where are centrioles found
Centrioles are tiny structures found in most eukaryotic cells, located near the nuclear envelope in the region known as the centrosome. The centrioles play a key role in cellular division.
Explanation:Centrioles are tiny cylindrical structures found in most eukaryotic cells, excluding most plant cells. They are located in the cell's cytoplasm, near the nuclear envelope, in a region referred to as the centrosome. Centrioles are made up of clusters of microtubules arranged in a specific pattern and play a crucial role in cellular division where they can organize the formation of the spindle fibers that separate chromosomes during cell division.
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Which of the following would most likely be key to gathering evidence that the RNA World hypothesis is valid?
Creation of suitable environments for long-term study of single-celled organisms
Simulation of early Earth conditions and long-term study of the resulting molecules
Development of a system for studying the microsphere's ability to absorb additional molecules
Categorization of the different specific conditions that result in the development of microspheres
Answer:
The answer is; Simulation of early Earth conditions and long-term study of the resulting molecules
Explanation:
It is believed that the first molecules on earth were made spontaneously through reaction spurred by energy from lightning and also the heat from the earth. It is believed that these molecules over time then formed polymers through the catalysis by metals in the oceans. These polymers were able to self-replicate and also act as enzymes since they were able to fold up. This hypothesis was coined by Carl Woese, Francis Crick and Leslie Orgel in the 1960s. To prove it, the then conditions of early earth need to be replicated, data collected, and analyzed.
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Answer:
Simulation of early Earth conditions and long-term study of the resulting molecules
Explanation:
Animals have a variety of adaptations, including trachea and gills, which allow this key process to occur. Which provides the molecules necessary for cellular respiration and efficient ATP synthesis?
A. Waste elimination
B. Gas exchange
C. Digestion
D. Nutrient absorption
Answer:
B
Explanation:
Gas exchange provides oxygen that is required for aerobic cellular respiration. Aerobic respiration produces more ATP molecules than anaerobic respiration. This is because oxygen acts as the ultimate proton acceptor (in the Krebs/Citric cycle) in the matrix of the mitochondria to form water as the waste product. This allows a proton motive force to be created in the mitochondria that is harnessed by ATP synthase to produce ATP molecules.
Gas exchange provides the molecules necessary for cellular respiration and efficient ATP synthesis.The correct option is B.
Cellular respiration is the process by which biological fuels are oxidised in the presence of an inorganic electron acceptor, such as oxygen, to drive the bulk production of adenosine triphosphate (ATP), which contains energy. Cellular respiration may be described as a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from nutrients into ATP, and then release waste products.
The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, producing large amounts of energy (ATP). Respiration is one of the key ways a cell releases chemical energy to fuel cellular activity.During cellular respiration, there is exchange of gases which takes place.
Thus, option B is correct.
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what occupation did muhammad have before the first revelation
Answer:
merchant
Explanation:
Before Muhammad had the first revelation, he was a merchant. He was well thought and trained for this profession throughout his life, and he was a very good and successful merchant. The majority of his career in this profession was including trade between the Indian Ocean and the Mediterranean, which was one of the best trading spots in that period of time. During his merchant career, Muhammad met many people, including lot of Christians, which heavily influenced his life, and later led to the revelations and development of the Islam.
Which statement about the immune system is false?
A. Lymphocytes reduce inflammation,
B. B cells remember specific pathogens.
C. Most white blood cells kill bacteria
D. White blood cells are made in lymph nodes.
Final answer:
The false statement about the immune system is that white blood cells are made in lymph nodes; they are actually produced in the bone marrow. Lymphocytes, such as B cells, are involved in adaptive immune responses, with B cells producing antibodies and memory B cells retaining pathogen information.
Explanation:
The statement about the immune system that is false is:
D. White blood cells are made in lymph nodes.
This statement is incorrect because while lymph nodes are a site where white blood cells can mature and interact with antigens, they are not the primary site of white blood cell production. White blood cells are primarily made in the bone marrow. Lymphocytes, which include B cells and T cells, are the subset of white blood cells that are involved in adaptive immune responses. Plasma B cells produce antibodies to fight against pathogens, and memory B cells retain the information about specific pathogens, enabling a faster and more robust response upon subsequent exposures. Meanwhile, certain white blood cells, such as macrophages, are known for their ability to phagocytize pathogens and produce inflammation-promoting chemicals.
Using the graph of data from this experiment, at which point was the light source most likely removed?
Answer:
We need a picture of the graph
Explanation:
Select the correct answer from each drop-down menu.
Which phase of mitotic division is the highlighted cell undergoing?
The cell is undergoing , which is the stage before .
Answer:
The answer is Telophase, which is the stage that comes right before cytokinesis.
Explanation:
Telophase of mitotic division is the highlighted cell undergoing
What is Telophase?The process of mitosis, which splits the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells, is called telophase.
The complete query missing is given below:
Which phase of mitotic division is the highlighted cell undergoing?
The highlighted cell is undergoing mitotic cell division and is in the telophase of the cycle. At each pole of the cell, a complete set of identical chromosomes is attained during telophase. The spindle disintegrates and vanishes. Around each set of daughter chromosomes, the nuclear membrane begins to develop.
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Is the only metal that is not solid at room temperature.
Steel
Aluminum
Copper
Mercury
Answer:
I believe it's Mercury.
Explanation:
Hope my answer has helped you!
Hello There!
Mercury is the only metal that is not solid at room temperature.
Mercury is highly toxic. The color of Mercury is silvery-white and it has a smooth/silky texture.
Which of the following accurately describes the correct order of events in the process of transpiration within a plant?
A. Water is absorbed through the leaves, nourishes the roots, and leaks through the stem pores.
B. Water is absorbed through the leaves, is transported through the stem, and nourishes the roots.
C. Water enters the roots, gets transported through the stem, and evaporates through the leaves.
D. Water enters the roots, passes through the leaves, and leaks through the stem pores.
Answer:
C. Water enters the roots, gets transported through the stem, and evaporates through the leaves
Explanation:
The process of transpiration within the plants has multiple steps. In order to get to the water, the plants use their roots, thus they manage to get it from the soil. From the roots, the water is then transported to the stem, and through the stem is transported throughout all of the plant, most importantly to the leaves. Once the water has been used, and the temperature is high enough, it evaporates through the pores of the leaves. This is part of the water cycle, and it is a very nice example of the interaction between four spheres, the hydrosphere, geosphere, biosphere, and atmosphere.
how is energy expended in active transport
Hello!
We know that the movement of molecules from an area of low concentration to high concentration. This movement is against the concentration gradient and thus requires the use of adenosine triphosphate (ATP) to successfully move. This process is the opposite of diffusion, which requires the use of no energy because it moves materials DOWN the concentration gradient.
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Please help!!!!!!!!!!! Question in picture.
fungi exist as single cells or as branching networks of multicellular filaments. How does the structure of filaments relate to their function
Answer:
The answer to this question is C
Explanation:
Answer:
Their high concentration of mitochondria aids in energy production
Explanation:
Mitochondria: are organelles responsible for the production of energy (ATP) from metabolic processes. Mitochondria are found in almost all eukaryotic cells including plants, animals, fungi and most protists. In fungi, mitochondria have an important function associated with filaments. The structure of the filaments interferes in the concentration of mitochondria that help in the production of energy.
which steps are part of the process during the formation of molded fossils
Answer:
1.- Mineralization
1.1 Recrystallization
1.2 Epigenization
2.- Carbonization
3.- Casting and Molds
3.1 Exterior
3.2 Interior
3.3 Against mold
Explanation:
The fossils, somatofossil, icnofossil, are formed after the remains of the body is buried. There are three forms of preservation, mineralization, smelting and molding and carbonization that preserve the remains for millions of years.
1.- Mineralization
They are processes in which bones and ichnofossils are formed. The remains of the body receive an addition of minerals or an alteration of the original minerals existing in the bone, which end up turning the remains practically into rock, with which it is known by petrification. Good examples are tree trunks, large bones and shells.
Within the mineralization we highlight two modes of fossilization that you can see below.
1.1 Recrystallization
The original organism is not preserved in its original material, the bone, for example, which is mostly replaced by some other mineral and the structure or shape of the fossil is partially modified.
1.2 Epigenization
This process is divided into two types.
The first, permineralization, occurs when the original material of the organism undergoes an addition of minerals that penetrate the bone, for example, leaving this petrified and heavier, since in addition to the original material the weight of the minerals added by time.
The other process is known as pseudomorphosis, where the original form of the organism is maintained but its material is completely replaced by another mineral.
2.- Carbonization
It occurs when there is a loss of volatile substances (oxygen, hydrogen and nitrogen mainly), leaving a carbon film. It is more frequent in structures formed of lignin, chitin, cellulose or keratin. This occurs when remains of plants or animals are crushed under a rock.
3.- Casting and Molds
They are negative impressions (it does not represent the organism as it really is, just an inverted mold) or positive (it represents the organism as it really is, that is, a copy), of parts of the organisms or their icnofossils. The molds are formed in 3 types.
3.1 Exterior
Forms a negative impression of the organism, such as the skin of an animal or the surface of a shell. The organism is covered in its outer part by a type of material, such as mud, for example, and its body over time remains the format of the organism in the mud that turns into rock, however for this to occur it is necessary that the remains have some surface with indentations, holes, irregular texture and that is somewhat resistant, so that the material that will form the impression can penetrate there and solidify. See the outer mold of a shell below.
3.2 Interior
Forms an internal impression of the organism, commonly occurs in shells. The mold is negative and is formed when mud or any other material penetrates inside the holes and into the rest of the animal and it ends up curdling. The body decomposes and a mold is left of the inside of the shell or of the organism in question.
3.3 Against mold
It forms a COPY of the original organism, but it is more difficult to produce naturally, since for the counter mold to be made it is necessary that first an internal or external "first mold" of it be made. This mold is filled with some material and would form a copy of the organism that formed the "first mold."
Which of the following are typical methods of professional communication?
a. scientific journal articles and presentations at conferences
b. term papers, laboratory reports, and poster presentations
c. lectures, term papers, and conferences
d. scientific journal articles, laboratory reports, and poster presentations
Answer:
the answer is a: scientific journal articles and presentations at conferences
Trust me
The following are typical methods of professional communication is scientific journal articles and presentations at conferences which is in option a as these are common methods of sharing research findings and advancements in scientific and academic communities.
Journal articles provide a detailed account of research methodology, results, and conclusions, while conference presentations allow researchers to present their work to a live audience and engage in discussions.Term papers, laboratory reports, and poster presentations are often utilized in academic settings, particularly within educational institutions. Term papers involve in-depth research and analysis on a specific topic, laboratory reports document experimental procedures and results, and poster presentations visually communicate research findings and conclusions.
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Different ___ of an element have different numbers of neutrons.
A. ions
B. isotopes
C. compounds
D. molecules
Please answer quickly if able :)
ANSWER: it is isotopes