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slava [35]
2 years ago
12

Please help!

Biology
1 answer:
postnew [5]2 years ago
7 0

Answer:

Modifying the accessibility of chromatic leads to complex regulation of eukaryotic gene expression.

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What do nonvascular plants use to transport water and nutrients?
Marrrta [24]
They don't use anything. Water and nutrients move through the plants body cell by cell.
7 0
3 years ago
Describe how the structures of proteins differ from the structures of carbohydrates
Masteriza [31]

Answer:

Both are considered macromolecules. I'll explain below

Explanation:

Proteins are like a huge Lego construction. Each individual piece gets pieced together to make a larger "thing" - Death Star, House, etc. Each individual piece is a monomer, and the larger construction is the polymer. The monomers are Amino Acids and they get pieced together to form the polymer that is called a protein. The linkage that they use is an amide bond, and in biology it is usually called a peptide bond.

Carbohydrates can be singular monomers or polymer units. They are made of completely different compounds - usually aldehydes or ketones. And they link together through different chemical linkages (acetal or ketal linkages for polymers,hemiacetal or hemiketal linkages for monomers).

Both can be large, 3D strucutres - proteins are only functional as a large, 3D structure, while carbohydrates can be singular.

5 0
3 years ago
(03.05 MC) In which of the following ways is DNA replication different from DNA transcription? (2 points) New cells can only be
Softa [21]
The correct option is D.
Transcription is the process by which the information in a DNA molecule is copied into an mRNA strand. Replication is the process by which two new strands of DNA are formed from a single parent DNA. Both the DNA and the RNA are composed of four different bases, three of the bases are the same while one is different for the DNA and RNA. It is only the RNA that has uracil while it is only the DNA that has thymine. Thus, Uracil is involved during the process of transcription since it is an mRNA strand that is formed while thymine is the one involved during the process of replication since it is a DNA molecule that is formed.<span />
3 0
3 years ago
Pls help..............................................................................................
Vesnalui [34]

Answer:

it's the earth's crust

Explanation:

cause it is

5 0
3 years ago
Jim does research in Antarctica. He frequently endures extremely low temperatures. Explain how his skin, muscles, and metabolism
kotegsom [21]

Answer:

Skin,muscles and metabolism play a significant role in maintaining his body temperature

Explanation:

Role of skin

In cold environment the blood vessels of the skin constrict to prevent the loss or liberation of heat from his(jim) body.

Role of muscles

The one of principle function of muscle is to store glycogen.The stored glycogen of jim"s muscle  undergo glycogenolysis to generate heat inside his body.

Role of metabolism

In cold environment the rate of aerobic respiration and other catabolic reactions such as beta oxidation of fatty acid occur to generate energy in form of heat in his body.

7 0
3 years ago
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