Answer:
Uracil
I hope that helps with everyone
Final answer:
Uracil is the nucleotide that indicates the nucleic acid is RNA, as it replaces thymine which is found in DNA.
Explanation:
The nucleotide that indicates the nucleic acid is RNA is uracil. Both DNA and RNA contain the nitrogenous bases adenine, guanine, and cytosine. However, only RNA contains uracil, which replaces thymine that is found exclusively in DNA. In RNA, uracil pairs with adenine, and this pairing is a defining characteristic distinct from the adenine-thymine pairing seen in DNA. Therefore, seeing uracil in a nucleic acid structure is indicative that the molecule is RNA, distinguishing it from DNA.
An object's motion changes
A.
when the forces acting on the object remain balanced.
B.
only if the object is at rest when a force acts upon it.
C.
only when a nonzero net force is applied to the object.
D.
all of these
Answer:
The answer is D, because if the all of them will either stop the object in motion or move an object that is staying still.
Explanation:
Colorblindness is a sex-linked trait. A mother with normal vision and a man who is colorblind have a colorblind daughter. What statement MUST be true about the parents?
Answer:
The child must have a father who is colorblind and a mother who is a carrier/ is colorblind.
Explanation:
The genetic code for color blindness is carried upon the x chromosome. This means that a male- who has only one X chromosome- only needs their mother to be a carrier to be colorblind. Women on the other hand, need two to be color blind, as the faulty x chromosome can be weeded out by the other.
Therefore, the father, in order to pass on the colorblindness, must be colorblind himself, whereas the mother only needs to be a carrier (or can be completely color blind herself).
Answer:
A) The mother is a heterozygous carrier
Explanation:
A) The mother is a heterozygous carrier. - only one that makes sense
B) The father is a heterozygous carrier. - he is double recessive
C) The mother cannot have the colorblind gene. - that is possible
D) The mother is homozygous dominant for normal vision. - that would mean the 100% of the offspring would be normal
which energy source is a result of tiny sea creatures being compressed over millions of years?
Answer:
Oil
Explanation:
Dead plankton falls to the bottom of the ocean and over centuries becomes oil from high pressure and heat
Answer:
The correct answer is crude oil.
Explanation:
The dead plankton settles at the bottom of the seas and oceans and because of the accumulating layers of sediments gets compressed over millions of years, resulting in the formation of crude oil. This takes place due to heat and high pressure. The extreme pressure and the heat is the source of energy, which leads to compression of tiny sea creatures and results in the formation of natural gas and oil.
Which of the following is true about living organisms and cells?
A. All living organisms are made of multiple cells.
B. Most living organisms are made of cells, but some organisms are not.
C. All living organisms are made of at least one cell.
D.Some living organisms are made of cells, but most organisms are not.
Answer:
C) All living organisms are made of at least one cell.
Explanation:
Cells are the basic building blocks of all organisms. If an organism has only one cell, it is called a unicellular organism.
Hope this helps! :)
The statement 'all living organisms are made of at least one cell' is TRUE (Option C).
According to the cell theory, all organisms are composed of cells, thereby the cell is the fundamental basic unit of all forms of life.
Organisms can be unicellular (e.g., bacteria) or multicellular (e.g., plants and animals).
Viruses are not organisms due they do not have cells.
In conclusion, the statement 'all living organisms are made of at least one cell' is TRUE (Option C).
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A chemical reaction removes an atom of oxygen from carbon dioxide to create carbon monoxide. What part of the chemical reaction is carbon monoxide?
A. substrate
B. active site
C. enzyme
D. product
D.product hope that helped
You scoop up a water sample from a local pond nearby, because you are curious about the possible microbes that might live there. After looking at several slides that held drops of the sample, you noticed two different kinds of cells: One kind was very small and had no separate internal structures; the other kind was much larger, and it contained several kinds of internal structures that were physically different from each other. Please name each cell and briefly describe their overall similarities and differences.
Answer:
The cell which is small and with no internal structures is most likely prokaryotic cell, while the larger cell with internal structures is eukaryotic cell.
Explanation:
There are two main types of cells among living organisms:
Eukaryotic cell (plants, animals, fungi) which is more compound, conntains nucleus with genetic material in it, membrane-bound organelles (mitochondria, Golgi apparatus, lysosomes etc). Because of their complex structure, the process within such cells are often more comlex then those in prokaryotes. Eukaryotic organisms are usually multicellularProkaryotic cell is simple cell found in Archea and Bacteria kingdom. It doesn't have nucleus neither membrane-bound organelles. Genetic material of these cell is located within the cytoplasm together with proteins and metabolites. First living cell was prokaryotic cell. Organisms that are prokaryotic are usually unicellular.The very small cells with no separate internal structures are likely prokaryotic cells while the larger cells with distinct internal structures are likely eukaryotic cells. Both share common structures but differ in size and complexity.
Explanation:The two types of cells you noticed in your water sample from the pond likely represent prokaryotic and eukaryotic cells. Prokaryotic cells are generally smaller and do not contain separatemembrane-bound internal structures. They have a simple structure with nucleic acids (DNA and RNA) floating freely within the cell. Prokaryotes like bacteria are examples of organisms that possess this cell type.
On the other hand eukaryotic cells are typically larger and contain several kinds of internal structures, called organelles, that are physically separate from each other. The DNA of eukaryotic cells is contained within a nucleus. Examples of eukaryotic cells can be found in organisms like plants and animals.
Both cell types share common structures like a plasma membrane, cytoplasm, genetic material (nucleic acids), and ribosomes. However, their size and the presence or absence of membrane-bound organelles differentiate them significantly.
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By the time energy from the sun has reached snappy and the food she eats how much of that original energy is still available to her
Answer:
There is one one-billionth of the original energy emitted available to her.
Explanation:
Energy released from the sun has to travel through space to reach anappy.
In the course of travelling, about thirty four percent of the energy is reflected back to space by clouds.
The earth then reflects back the remaining.
Reflection from the earth includes snappy's and the food she is eating reflection.
Answer:
10 percent of the energy is passed on to Snappy!
I hope this helped you, even though I'm probably late
Can anyone please help me on this at least some
Answer:
119. Pollution
120. Greenhouse Effect
121. Chlorofluorocarbons (CDFs)
122. Acid rain
123. ?
124. Habitat (maybe)
125. Bioaccumulation (maybe)
Explanation:
How do organ cultures differ from cell cultures?
They can be used to produce proteins.
They can be used to grow a new organism.
They can be used to determine the response of a tissue to drugs.
They can keep organ tissue alive for transplantation.
Answer:
they can keep organ tissue alive for transplantation
Explanation:
They can keep organ tissue alive for transplantation.
What is Organ Culture ?Organ culture can be defined as the organs or plant parts culturing in an artificial media or a culture from isolated medium.It also helps in broadening the horizon for the developments in agriculture and horticulture.What is Cell Culture ?Cell culture refers to the removal of cells from an animal or plant and their subsequent growth in a favorable artificial environment.Cell cultures may be used to diagnose infections, to test new drugs, and in research.Learn more about Cell and Organ Culture here:
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Gaucher disease is the most common of lipid storage diseases in humans. It is caused by a deficiency of an enzyme necessary for lipid metabolism. This leads to a collection of fatty material in organs of the body including the spleen, liver, kidneys, lungs, brain, and bone marrow. Using your knowledge of the structure of eukaryotic cells, identify the statement below that best explains how internal membranes and the organelles of cells would be involved in Gaucher disease. Gaucher disease is the most common of lipid storage diseases in humans. It is caused by a deficiency of an enzyme necessary for lipid metabolism. This leads to a collection of fatty material in organs of the body including the spleen, liver, kidneys, lungs, brain, and bone marrow. Using your knowledge of the structure of eukaryotic cells, identify the statement below that best explains how internal membranes and the organelles of cells would be involved in Gaucher disease. The lysosomes lack sufficient amounts of enzymes necessary for the metabolism of lipids. The rough endoplasmic reticulum contains too many ribosomes which results in an overproduction of the enzyme involved in carbohydrate catalysis. The Golgi apparatus produces vesicles with faulty membranes that leak their contents into the cytoplasm of the cell. The mitochondria are most likely defective and do not produce adequate amounts of ATP needed for cellular respiration.
Answer:
The lysosomes lack sufficient amounts of enzymes necessary for the metabolism of lipids.
Explanation:
Lysosomes are a membrane-bound organelles with acidic interior that enables the function of hydrolytic enzymes. So, the main role of lysosomes is degradation of macromolecules (such as lipids). Low pH (about 5) is suitable for the action of enzymes involved in hydrolysis (hydrolases) and there are about 50 of them inside the lysosome. Beside macromolecules, lysosomes degrade organelles, but also can digest themselves via autophagy (e.g. when cell is under stress).
Lysosomes are also involved in plasma membrane repair, defend against pathogens (macrophages), cell signaling, metabolism etc.
Gaucher disease, due to a deficiency in a specific enzyme, leads to impaired lipid metabolism. This results in fatty material accumulating in organs and within cells. The disease primarily affects organelles such as lysosomes and the endoplasmic reticulum but impacts the overall functioning of the cell.
Explanation:In Gaucher disease, the inability to metabolize lipids due to a deficiency in a particular enzyme leads to the accumulation of fatty material in various organs. Key to understanding the effect of this disease on eukaryotic cells is the structure of the cell and its organelles, specifically the lysosomes and endoplasmic reticulum. Lysosomes, which contain enzymes for digesting cellular components and foreign material, fail to break down lipids, resulting in their buildup within the cell.
The endoplasmic reticulum (ER) plays a significant role in lipid synthesis. Therefore, a breakdown in this process could trigger the accumulation of unprocessed lipids, impacting the overall functioning of the cell. It's significant to note that while the lysosomes and ER are centrally implicated, the overall interconnected dependency of the cell on its organelles implies that all organelles are affected, to various degrees, due to enzymatic deficiency. For example, the Golgi apparatus is involved in lipid modification and transportation; a metabolic pathway is disrupted by the disease.
The disease's impact can further disrupt the function of the mitochondria, affecting ATP production necessary for cellular respiration and metabolism. Therefore, while primarily a failure of lipid metabolism due to enzymatic deficiency, Gaucher disease's impact is felt across an array of organelle functions, disrupting the normal functioning of eukaryotic cells.
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This question is to guys specifically: Do you find girls who are serious more or less attractive than girls who are extroverted or cheery? Reply honestly pls
Answer:
I find girls who are serious less attractive than girls who are extroverted and cheery. It is often difficult to start a conversation with the serious types. I like girls who can laugh at my silly jokes and who also have a sense of humor. I think many good friendships or relationships start with lighter moments or moods.
I would say Mr. Pinecrest Virtuoso or should I say Mr. Hercules that you were right all along. Well... well even though this was my personal question it wouldn’t be a bad idea to gain points out of it. From my personal experience I’ve found that both being serious while keeping a side of extroversion can draw people in and it feels great. Thank you for your answer. Also, it’s amazing how you never put that mind of yours to work and found out my Insta was actually Ad.ri440. I was waiting for that friend request you know
Hey student drew the following flowchart to show the movement of nutrients through earths spears soil plants animals air which process directly moves nutrients for animals to the air? Mineralization ,breathing, photosynthesis or feeding
Answer:
The correct answer is breathing.
Explanation:
A physiological procedure, which provides the body with oxygen and discharges carbon dioxide is known as breathing. In the process, the pulmonary alveoli, which are situated in the lungs permit the exchange of respiratory gases between the blood, that is, the internal medium and the air or the atmosphere, that is, the external environment.
Answer:
breathing
Explanation:
Breathing is a process of gas exchange whereby living things obtain oxygen and eliminate carbon dioxide into the atmosphere. Oxygen obtained through respiration is used by cells in the cellular respiration process to obtain energy.
Each animal has a different way of performing gas exchange, but we can say that it is through breathing that all animals move nutrients directly into the air through breathing. In more complex animals, there are structures capable of oxygen uptake, such as skin, trachea, gills and lungs.
Which of the following are characteristics of translation?Each tRNA binds one amino acid and also carries an activating enzyme for this amino acid, known as an amino transferase.The anticodon region of the tRNA binds to a complementary codon region on mRNA.mRNA is read in the 3′ to 5′ direction.The resulting polypeptide is synthesized from its N terminus.View Available Hint(s)Which of the following are characteristics of translation?Each tRNA binds one amino acid and also carries an activating enzyme for this amino acid, known as an amino transferase.The anticodon region of the tRNA binds to a complementary codon region on mRNA.mRNA is read in the 3′ to 5′ direction.The resulting polypeptide is synthesized from its N terminus.Only 2 and 4 are correct.1, 2, and 4 are correct.All of the listed statements are characteristics of translation.None of the listed choices is a characteristic of translation.
Answer:
Only 2 and 4 are correct
Explanation:
Translation is a process of protein synthesis and it is the final step of gene expression. mRNA synthesized during the transcription is used as an information carrier for protein synthesis. It contains codons-triplet of nucleotides that correspond to one amino acid. mRNA is read in 5'-3' direction by translational machinery. tRNA which is part of the by translational machinery (together with ribosome and proteins) has in ts structure anticodon-RNA triplet which is complementary to the mRNA. tRNA also contain a site for the attachment of amino acid. Amino acids are linked via peptide bonds by an enzyme aminoacyl tRNA synthetases. Polypeptide is synthesized from N to C terminus.
What Is Another Name For Lane D In The Diagram?
C.) A Positive Control (Apex) （＾∇＾）
Answer:
C
Explanation:
In an experiment, 'Lane D' could refer to a sample lane, a control lane, or a lane for a specific substance. It could potentially be a positive or negative control depending on the expected results and the experiment's setup.
Explanation:Since there isn't an image or diagram included with your question, I'll give a general explanation. Typically, in a laboratory experiment particularly in molecular biology, lanes in a gel electrophoresis diagram are often designated by letters (A, B, C, D, etc.). Lane D could be a sample lane, a control lane, or it could be designated for a specific substance depending on the experiment's setup.
In some cases, Lane D, could be referred to as a positive control or even a negative control, depending on the experiment. If the substance in Lane D is expected to produce a specific, known result, it would be a positive control; if it is expected to produce no result or a baseline result, then it would be a negative control.
Please provide additional context or refer to your lab instructions or experiment setup for a more accurate designation of 'Lane D' in your specific case.
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What is an advantage of a degenerate genetic code?
Mutations are more likely to alter proteins, increasing the rate of evolution.
Mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism.
It increases the number of different proteins that can be coded by each gene.
It decreases the total number of tRNAs that have to be made.
Answer:
The first one
Explanation:
This is because there are no base triplets that are unused in the cell. All of the bases are used since more than one triplet of DNA bases are coded for amino acids
An advantage of a degenerate genetic code is that 'mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism'.
The genetic code refers to the fact that the linear order of nucleotides in DNA and also in mRNA determines the order in which amino acids are added to the protein during translation.The genetic code is said to be redundant or degenerate because different triplets of nucleotides or codons in the mRNA can encode the same amino acid.For example, leucine can be encoded by six different synonym codons (i.e., CTT, CTC, CTA, CTG, TTA, and TTG).In consequence, mutations that generate synonym codons don't have a direct effect on the synthesized protein.In conclusion, an advantage of a degenerate genetic code is that 'mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism'.
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I need answers quick please help me
Answer:
?
Explanation:
Answer: i know 2.D
Explanation: thats all ik by heart
Between 1940 and 1970 most scientists were already concerned about global warming.
T/F?
Answer
Hi,
FALSE
Explanation
Before 1970, most people started to see the effects of Climate changes such as increasing warming up of the United States and the North Atlantic region. Scientists during this period only suggested that these changes were due to natural cycle with unidentified reasons. After 1970s, scientists developed strong beliefs that greenhouse gases were the cause of increasing global temperature. In 1988, scientist initiated meetings and research on global scale as a positive move to cut greenhouse gas emissions.
Best Wishes!
Which of the following describes research that that would be considered basic science?
I think it's A. Tell me if I'm wrong.
Please leave a thanks.
Answer:
A
Explanation: Basic research, or fundamental research, is focused on generating scientific knowledge that helps us to understand the nature of the world around us. Therefore, the aim of basic research is not to use that knowledge in specific applications. This would be the case of the investigation if someone tried to respond how the growth of a desert plant would be in conditions of excess water. This research would contribute to general knowledge without a concrete practical application.
which of the following inventors of the 1870s had a directing Major Impact on the prairie ecosystem
Answer:
The steel plow and barbed wire
Explanation:
It was in 1837 when John Deere, a blacksmith from Illinois invented a steel mouldboard plough that was strong enough to cut through the stubborn roots of the prairie grasses. This invention turned millions of acres of prairie land into fields for arable crops and grazing ground for huge herds of domesticated cattle. The starving Indians who were displaced resorted to slaughtering the bison in 1872 to 1874 that resulted in the decrease of its population from 7.5M animals to about 750 only.
Answer:
It’s D or C ( I hope this helps )
Imagine that sex cells divided by mitosis instead of meiosis. What would then be the result of fertilization of an ovum by a sperm cell?
A. Fertilization would result in the formation of two identical cells.
B. The new individual would be identical to only one of the parents.
C. Fertilization would cause crossing-over and recombination of genes.
D. Cells of the new individual would have double the necessary number of chromosomes.
Answer D. Cells of the new individual would have double the necessary number of chromosomes.
Explanation:
The result of fertilization of an ovum by a sperm cell forms a new individual that would have double the necessary number of chromosomes. Thus, the correct option for this question is D.
What is Fertilization?Fertilization may be characterized as a biological event that significantly involves the fusion of a male gamete with a female gamete in order to produce a zygote. It is generally the union of two gametes. The zygote that is produced is diploid in nature.
The division of sex cells or gamete cells is facilitated through the process of meiosis. This process of cell division produces two daughter cells that are genetically dissimilar to the parent one. It is also known as the reductional division.
But if the process of division of sex cells is accomplished through mitosis, it would eventually produce a new individual that would have double the necessary number of chromosomes.
Therefore, the correct option for this question is D.
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Which of the following processes breaks down glucose?
A:)Excretion
B:)Photosynthesis
C:)Reproduction
D:)Respiration
Answer:
The correct answer is option D:) "Respiration".
Explanation:
In Biology, respiration is defined as the way a cell or an organism obtains energy by combining oxygen and glucose in a biochemical process that results in the release of carbon dioxide, water and adenosine triphosphate (ATP, the molecule that carries energy for almost any cellular process). These molecules are obtained by the gradually broken down of glucose, having the overall chemical equation of C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water)
The process that breaks down glucose is respiration.
Which process breaks down glucose?
Glucose is a molecule that stores energy, and during respiration, it is broken down in a series of chemical reactions to release energy. This energy is then utilized by cells for various metabolic processes, such as growth, movement, and maintaining essential functions.
Option A, excretion, refers to the elimination of waste products from the body and is not directly involved in breaking down glucose.
Option B, photosynthesis, is the process by which plants and some other organisms convert light energy into chemical energy, producing glucose from carbon dioxide and water. It is the opposite process of glucose breakdown.
Option C, reproduction, refers to the process of producing offspring and is not directly related to breaking down glucose.
Therefore, the correct answer is D) Respiration.
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Speciation is facilitated in small, isolated populations because: a) Founder effects may create uniform genetic backgrounds, converting interactive variance genetic to additive genetic variance. b) Founder effects may create uniform genetic backgrounds, converting dominance variance genetict to additive genetic variance. c) Founder effects may create uniform genetic backgrounds, converting linkage disequalibrium to additive genetic variance. d) Founder effects may create uniform genetic backgrounds, converting additive genetic variance to a non-random sample of the population. e) none of the above.
Answer:
OOF
Explanation:
The correct answer is b) Founder effects may create uniform genetic backgrounds, converting dominance variance to additive genetic variance. This process, facilitated by genetic drift in small, isolated populations, can lead to speciation by increasing the frequency of certain alleles and changing the nature of variance within a population.
Explanation:This is because founder effects often result in a population not genetically representative of the original larger population from which it derived. This can lead to an increase in certain alleles - potentially including deleterious ones - within the new population, as well as a change from dominance variance (where dominant and recessive interactions influence the phenotype) to additive variance (where alleles contribute to the phenotype independently of each other). Such events can ultimately lead to speciation as these changes accumulate over time.
An example of the founder effect is observed in the Afrikaner population of Dutch settlers in South Africa, where a small subset of the original population carried mutations for Huntington's disease (HD) and Fanconi anemia (FA), resulting in these diseases being more prevalent in the current population. Similarly, the side-blotched lizards' throat color patterns demonstrate how founder effects can influence phenotype frequencies through genetic drift. These instances underline how a small, isolated population can develop distinct genetic traits different from the original population, which may foster speciation.
Noncompetitive, enzyme, irreversible, acetylcholinesterase, competitive, active site.1. Insecticides and nerve gases act as irreversible inhibitors of ________, an enzyme needed for nerve conduction. 2. A _________ inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate. 3. The competitive inhibitor competes with the substrate for the _____ on the enzyme. 4. When the noncompetitive inhibitor is bonded to the enzyme, the shape of the _______ is distorted. 5. A _________ inhibitor binds to a site on the enzyme that is not the active site. 6. Usually, an ______ inhibitor forms a covalent bond with an amino acid side group within the active site, which prevents the substrate from entering the active site or prevents catalytic activity.
Answer:
Binds to a site on the enzyme that is not the active site. When this occurs, the shape of the enzyme is distorted
A competitive inhibitor is one that has a structure that is so similar to the substrate that it can attach to the enzyme in the same way as the substrate.
What is the structure of enzyme?Non-competitive inhibitors are those that bind to an enzyme location other than the active site.
Typically, an inhibitor binds to an amino acid side group at the active site through a covalent link, preventing the substrate from accessing the active site or inhibiting catalytic activity persistent inhibition.
The substrate and the competitive inhibitor fight for the enzyme's active site.
Therefore, the enzyme's structure is altered when the noncompetitive inhibitor is bound to it.
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Life as we know it depends on the genetic code: a set of codons, each made up of three bases in a DNA sequence and corresponding mRNA sequence, that specifies which of the 20 amino acids will be added to the protein during translation. Imagine that a prokaryote-like organism has been discovered in the polar ice on Mars. Interestingly, these Martian organisms use the same DNA → RNA → protein system as life on Earth, except that there are only 2 bases (A and T) in the Martian DNA, and there are only 17 amino acids found in Martian proteins. Based on this information, what is the minimum size of a codon for these hypothetical Martian life-forms? View Available Hint(s) Based on this information, what is the minimum size of a codon for these hypothetical Martian life-forms? 2 bases 3 bases 4 bases 5 bases 6 bases The answer cannot be determined from the information provided.
Answer:
5 bases
Explanation:
If there are 17 amino acids and only 2 bases that can be combined in order to make a codon then:
for 4 bases [tex]4^{2}[/tex] is 16 and it is not enough combination for all 17 amino acids
for 5 bases [tex]5^{2}[/tex] is 25 combinations (meaning that more than one codon could code for the same amino acid).
Answer:
5
Explanation:
life as we know it awncer
Which of the following is/are true regarding the way aminoacyl-tRNA synthetases ensure the fidelity of translation? They can sense the improper fit of an amino acid and hydrolyze the intermediate prior to attachment to the tRNA. There is a short window of opportunity for the enzyme to hydrolyze the amino acid-tRNA bond before it is released for translation. The tRNA has a polynucleotide domain that is responsible for proofreading. Aminoacyl-tRNA synthetases do not proofread.
Answer: evidence supporting the therory slowly accumulated
Explanation:
The answer is B
Answer:
They can sense the improper fit of an amino acid and hydrolyze the intermediate prior to attachment to the tRNA. There is a short window of opportunity for the enzyme to hydrolyze the amino acid-tRNA bond before it is released for translation.Explanation:
An aminoacyl tRNA synthetase (aaRS) is a very important exhima during protein synthesis that is made through translation. This enzyme is an important factor not only for regulating the translation process, but also for the efficiency of a newly formed protein. This is because this enzyme is responsible for maintaining the fidelity of the genetic code during protein formation. This is done by detecting improper adjustment of an amino acid and hydrolyzing the intermediate prior to tRNA binding. furthermore, this enzyme may hydrolyze the amino acid-tRNA bond before being released for translation.
One danger of excessive nitrogen levels in water is blank The greenhouse effect nitrogen fixational oxygenation eutrophication ?
Answer:
eutrophication
Answer:
Eutrophication
Explanation:
Nitrogen is one of the nutrients that support the growth of plants and algae. Presence of excess nitrogen in water would favor excessive growth of algae in the water.
This uncontrolled growth of algal population in water as supported by the presence of nitrogen is called eutrophication. The algal population consumes available oxygen leading to lack of oxygen for other aquatic animals such as fishes.
Technique of placing a desired plant stem into another, more adequate root system is _____.
Answer:
grafting
Explanation:
The grafting is a horticultural technique that enables us to place a stem of a desired plant into another, more adequate already developed root system. This is done by cutting a branch from the already established plant, on the place of the precisely made cut we joint the desired stem, and then joint them together, be it with wax, mud, or a sellotape. The stem that has been placed on the established plant will be able to get the nutrients from it in this manner and become part of it, but it will produce different fruits from the established plant, it will produce its own fruits. This technique of course works only on plants that are more closely related and belong to the same family.
Which of the following correctly describes connective tissue
Answer:
There are no multiple choices
Which of these refers specifically to a stiffening of the arteries, which in turn restricts blood flow?
A) AIDS
B) cardiotitus
C) veinosclerosis
D) arteriosclerosis
Answer:
D) arteriosclerosis
Explanation:
Arteriosclerosis refers to the thickening and hardening of walls of the arteries. In simple words it is the stiffening of the artery walls. Arteriosclerosis is caused by high blood pressure, high cholesterol levels or smoking, which damages the arteries causing the formation of plaques.Formation of plaques makes arteries to thicken and stiffen thus restricting the flow of bloods to organs and tissues in the body.Answer: D) arteriosclerosis
Explanation:
The answer is correct because I did the USA test prep.
The molecules that make up living things are incredibly diverse due in part to the variety of possible carbon skeletons. Which of the following structural components can be found in carbon skeletons?
I. triple bonds
II. quadruple bonds
III. rings
IV. branches
I. triple bonds, III. rings and IV. branches
Answer: The answer would be III.
Explanation: