Why are bacteria such as Rhizobium and cyanobacteria so important in the
nitrogen cycle?
A. They return nitrogen gas to air
B. They fix atmospheric nitrogen gas for the food chain
C. They decompose dead plants and animals
D. They build protein in plants
Answer:A. They return nitrogen gas to air
Explanation:
Answer:
The correct answer is B
Explanation:
Got it correct on GAVS..
Which of the following elements is required for growth and development and is in our DNA? *
hydrogen
carbon
oxygen
nitrogen
phosphorus
Answer:
Nitrogen
Explanation:
Nitrogen is the most abundant element in our atmosphere and 7th most abundant in the universe. It is vital in the formation of nitrogenous bases which are the key bonds that form nucleic acids such RNA and DNA.
Type your answers in all of the blanks and submit
Match each of the following examples to the correct Gymnosperm Phyla. Enter the correct letter in the fields below.
A. Cycadophyta
B. Ginkgophyta
C. Gnetophyta
D. Coniferophyta
Type your answer here 1. Ephedra spp.
Type your answer here
2. Sago palm, Cycas revoluta
Type your answer here
3. Ginkgo tree, Ginkgo biloba
Type your answer here
4. Pine tree, Pinus sp.
Type your answer here
5. Bald cypress
Type your answer here
6. Zamia sp.
Type your answer here
7. Welwitschia mirabilis.
Type your answer here
8. Gnetum sp.
Answer:
I need so help on this one
Explanation:
A(n) ___ lens has a center that is thicker than its edge.
Answer:
convexHope this helps
Tissues combine to form
a
cells
b
organs
с
organ systems
d
organisms
Which of the following does not lead to an increase in phytoplankton reproduction?
a.
increased nutrient availability
b.
increased sunlight
c.
increased oxygen levels
d.
increased levels of carbon dioxide
Please select the best answer from the choices provided
A
B
C
D
Answer:
(c) increased oxygen levels
Explanation:
edg 2020
Carbohydrate, Protein, and Fat Digestive Enzymes A key objective in this chapter is to identify the major enzymes in the digestion of carbohydrates, proteins, and fats as well as the organs that secrete them. This activity requires you to match the enzyme with the secreting organ. Drag the names of the enzymes to their respective bins, representing the appropriate secreting organ. Some organs secrete more than one enzyme. 1. pancreatic amylase2. pepsin3. salvary amylase4. gastnc lipase 5. pancreatic lipase6. trypsin 7. chymotrypsin8. carboxypeptidaseA. Salivary Glands B. Stomach C. Pancreas D. Small Intestine
Answer:
its C
Explanation:
The following enzymes are secreted by the organs listed below:
Salivary glands: salivary amylaseStomach: pepsinPancreas: pancreatic amylase, pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSmall intestine: pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSalivary amylase enzyme is secreted by the salivary glands and breaks down starch into maltose. Pepsin enzyme is secreted by the stomach and breaks down proteins into smaller polypeptides. Pancreatic amylase enzyme is secreted by the pancreas and breaks down starch into maltose. Gastric lipase enzyme is secreted by the stomach and breaks down fats into fatty acids and glycerol.
Pancreatic lipase enzyme is secreted by the pancreas and breaks down fats into fatty acids and glycerol. Trypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Chymotrypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Carboxypeptidase enzyme is secreted by the pancreas and breaks down polypeptides into amino acids.
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Beth recently became a vegetarian. The doctor suggested beth eats more peas and beans to ensure she gets all of the nutrients she needs. what element might the doctor be trying to give her more of
Answer:
nitrogen
Explanation:
Answer:
Nitrogen!
Explanation:
I took the test!!!
1. ____________ takes place in organelles called chloroplasts.
2. Light energy is captured by the green pigment ____________
3. Cells use oxygen to release energy during ___________
Answer: Photosynthesis
Explanation:
Answer:
Explanation:
Cells get nutrients from their environment, but where do those nutrients come from? Virtually all organic material on Earth has been produced by cells that convert energy from the Sun into energy-containing macromolecules. This process, called photosynthesis, is essential to the global carbon cycle and organisms that conduct photosynthesis represent the lowest level in most food chains (Figure 1).
what are the importance of planting and propagating trees and fruit bearing trees?
Answer:
Planting and propagating trees and fruit bearing trees are important because without these we won't have fruits to eat, our land will suffer from soil erosion, there will be landslide and flooding and we won't have fresh air to breathe.
Planting and propagating trees and fruit-bearing trees is important in a variety of ways:
Many fruits from trees serve as food for other organisms, including man. Fruits are rich in important nutrients that are essential for the health and survival of man.Trees are sources of timber for various construction works for man. Trees serve as habitats for other living organisms like insects, birds, etc. These organisms serve important ecological functions in the ecosystem.Trees are important for tackling water erosion. The roots of trees hold the soil structures together while their leaves reduce the force with which raindrops hit the ground.Trees help with carbon fixation. Thus, they help rid the environment of pollution and purify the air.Branches of trees also act as breakages during wind, thus, protecting the environment.More on the functions of trees in the environment can be found here: https://brainly.com/question/23108922
The three basic parts of cell theory are
Answer:
The bound together cell hypothesis expresses that: all living things are made out of at least one cell; the cell is the fundamental unit of life, and new cells emerge from existing cells.
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59:33
Which best describes thermal energy?
It is the difference between internal energies of two or more substances.
It is the sum of internal energies of two or more substances.
It is the portion of internal energy that can be transferred from one substance to another.
It is the portion of potential energy that can be transferred from one substance to another
Answer: The correct answer is (B.-It is the sum of internal energies of two or more substances.)
Which of the following best describes the formation of the bond shown in Figure 1 ?
А
An ionic bond is formed between a carbon atom of one amino acid and the nitrogen atom of the other amino acid,
B
An ionic bond is formed when the negative charge of an OH group is balanced by the positive charge of a hydrogen ion.
с
A covalent bond is formed between a carbon atom and a nitrogen atom along with the formation of H2O
D
A covalent bond is formed that replaces the hydrogen bond between the OH group and the H atom,
Answer: it is c, a covalent bond
Explanation:
The area where an ocean meets land is called the ____ zone.
aphotic
photic
intertidal
benthic
Answer:
the area where ocean meets land is called the intertidal zone
The area where an ocean meets land is called the "intertidal" zone. Therefore, option (C) is correct.
What is intertidal zone?The intertidal zone, also known as the littoral zone, is the area of the shoreline that is exposed to air at low tide and submerged underwater at high tide. This zone is the boundary between the land and sea and is constantly affected by the ebb and flow of the tides. The intertidal zone is characterized by its unique physical and environmental conditions, such as the exposure to air and sunlight, the fluctuations in temperature and salinity, and the constant pounding of waves.
Due to these environmental conditions, the intertidal zone is home to a diverse range of plant and animal species that have adapted to the harsh and dynamic environment, such as barnacles, mussels, crabs, and seaweed. The intertidal zone is an important ecosystem that provides habitat, food, and breeding grounds for many marine species, and is also a popular area for recreation and scientific research.
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The leaves of chaparral shrubs are typically __________.
A)
small and waxy
B)
evergreen leaves
C)
able to store water
D)
all of the above
Please select the best answer from the choices provided
A
B
C
D
Answer:
D. All of the above
Explanation:
Answer:
D
Explanation:
i searched up tim and moby fan art. my eyes did not like what i saw.
Answer:
do tell, what did you see?
Succession occurs after ecosystems experience some type of disruptive event. Please select the best answer from the choices provided T F
Answer:
TRUE
Explanation:
Succession occurs after ecosystems experience some type of disruptive event.
Answer:
TRUE
Explanation:
Edge 2020
The following statement compares different starches: Because it is branched and can be broken down to ________ by multiple enzymes at the same time, _________ is digested more quickly than _________. The following statement compares different starches: Because it is branched and can be broken down to ________ by multiple enzymes at the same time, _________ is digested more quickly than _________. lactose; amylose; amylopectin fructose; cellulose; amylopectin monosaccharides; amylopectin; amylose simple sugars; cellulose; amylose amylopectin; amylose; glycogen
Answer:
monosaccharides
amylopectin
amylose
Explanation:
Monosaccharides is any of the class of sugars such that it cannot be hydrolysed into a simpler sugar.
Amylopectin is the non-crystallizable form of starch that consists of a branch of polysaccharide chains.
Amylose is the crystallizable form of starch that consists of an unbranched polysaccharide chains
The following statement compares different starches: Because it is branched and can be broken down to monosaccharides by multiple enzymes at the same time, amylopectin is digested more quickly than amylose.
How are the molecules in photosynthesis and cellular respiration similar?
The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart
brainscape: Restriction enzymes: A) act at the membrane to restrict the passage of certain molecules into the cell. B) are highly specialized ribonucleases that degrade mRNA soon after its synthesis. C) are sequence-specific DNA endonucleases. D) are very specific proteases that cleave peptides at only certain sequences. E) catalyze the addition of a certain amino acid to a specific tRNA. c The biological role of restriction enzymes is to: A) aid recombinant DNA research. B) degrade foreign DNA that enters a bacterium. C) make bacteria resistant to antibiotics. D) restrict the damage to DNA by ultraviolet light. E) restrict the size of DNA in certain bacteria.
Answer:
C) are sequence-specific DNA endonucleases
B) degrade foreign DNA that enters a bacterium.
Explanation:
Restriction enzymes are the proteins that cut the DNA at a specific sequence.
Restriction enzymes are also known as restriction endonuclease produced by bacteria that recognizes a specific sequence on DNA and split it by catalyzing the hydrolysis or addition of water molecule. So, Restriction enzymes are sequence-specific DNA endonucleases.
The biological role of restriction enzymes is to restrict the entry of foreign DNA into the bacterium. Restriction enzymes have the ability to restrict the number of bacteriophage strains that affect bacteria.
Hence, the correct options are "C and B"
Name three similarities between Mitosis and Binary fission.
1.
2.
3.
Which event occurred during the Space Race?
NASA was established.
The International Space Station was built.
The Soviet Union launched Salyut.
The United States launched Skylab.
Answer:
The International Space Station was built.
Explanation:
Answer:
A.) NASA was established.
Which tenet of the cell theory is being demonstrated by the graph below? A.) cells can never be destroyed B.) cells are the smallest unit of life C.) all living things are made of cells D.) cells come from existing cells
Answer:
The cell theory demonstrated by the graph above is that all cells come from pre existing cells.
6
How has human activity negatively affected sea turtle populations?
Answer:
Because humans liter on beaches and around the world.This can cause sea turtles to eat trash and get trash stuck up there noses.Also when sea turtle lay eggs on the beaches humans tend to step on them and that is a sense of human activity that can affect the sea turtle population.
Explanation:
I really hope this helps.;)
Consider the impact of each substance on cellular respiration. Each substance has an influence at the cellular level, and has no effect on hunger. Assume that the substances have no other impact on the cell other than the one described. Substance’s Effect: Makes the lipid bilayer of the inner mitochondrial membrane highly permeable to (H+) protons. Does it cause weight gain or loss?
Answer:
The correct answer is "Weight loss".
Explanation:
If the influence of material is such that it adversely affects the attachment of NAD+ to electrodes, it can help people lose weight. This because it will indeed necessarily imply that perhaps the ATP throughout the cells would've been whittled down unless the compound NADH could not have been established. This also suggests that because the body doesn't obtain adequate ATP, this also contributes to the breakdown of fat into some kind of type of stored energy which always promotes weight loss throughout the turn.A 50-year old man notices a hard spot just superior to the diaphragm that he has never had before.
Should he be alarmed? Explain.
Answer:
Yes
Explanation:
Hes old he could die duh.
Varicella-zoster is the virus that causes chickenpox. The average incubation period is 14 to 16 days after exposure. A person usually experiences a mild fever and fatigue for 1 to 2 days before rashes appear all over the body. A person having had chickenpox as a child may have the virus lay inactive in the nerve cells for many years only to reactivate much later as an adult in the form of shingles, which results in a very painful rash. This information suggests that the reproductive cycle of the varicella virus is -
a)lytic for shingles because the virus causes rashes to appear on the skin.
b) lysogenic for chickenpox because the virus attacks the mucous membranes.
c) lysogenic because the virus is a varicella-zoster virus.
d) lytic for chickenpox because the symptoms appear soon after infection.
Answer:d
Explanation: because it’s true
which one of the following is not an organic compound
CaO i think, hoped that helped
There are several ways to produce the amino acids that build a protein. What does this mean?
Answer: Some MRNA codons code for multiple amino acids. So they can produce amino acids many ways, that build a protein.
There are several ways to produce the amino acids that build a protein because the genetic code is DEGENERATE or REDUNDANT.
In a given messenger RNA (mRNA) sequence, the triplets of nucleotides or 'codons' indicate specific amino acids to be added during protein synthesis.
The genetic code is said to be 'degenerate' or 'redundant' because different codons may encode the same amino acid.
For example, both the AUC codon and AUA codon in mRNA specify isoleucine, so alterations (i.e., mutations) in the nucleotide sequence do not always alter the protein sequence.
In conclusion, there are several ways to produce the amino acids that build a protein because the genetic code is DEGENERATE or REDUNDANT.
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Need help noooooo caaappppp
Answer:
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Explanation:
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