What determine what people look like

Biology

1 answer:

NISA [10]3 years ago

8 0

Answer:

Nucleic Acids

Explanation:

Nucleic acids link together to form DNA, which determines the different traits people have, directly relating to appearance.

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How do small intestinal epithelial and root hair cells function in nutrient procurement?

Usimov [2.4K]

<span>Villi are hair-like structures covered with epithelial cells measuring 1.5 mm that line the mucous inner membrane of the small intestine. The epithelial cells of the villi contain microvilli and are responsible for the absorption of nutrients. Being so small and numerous, they effectively increase the absorptive surface area of the small intestine. When the surface area increases, this is the time they absorb the nutrients. As for plants' root hair cells, they receive nutrients through osmosis. Root hair cells are adapted for this by having a large surface area to speed up osmosis. The absorbed water and minerals are transported through the roots to the rest of the plant where it is used for different purposes: It is a reactant used in photosynthesis. As we can see, both of them utilize increasing their surface area.</span>

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3 years ago

Which statement is true of DNA polymerase?

Snezhnost [94]

Answer:

b) DNA polymerase can synthesize DNA in the 5' to 3' direction

DNA polymerase is only able to synthesize a new strand of DNA and not mRNA. It is only able to do this in the 5' to 3' direction. The leading template strand runs in the 3' to 5' direction and so the new complementary strand is synthesized in a 5' to 3' direction in one continuous run, following the replication fork as it 'unzips' the DNA.

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Explanation:

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3 years ago

Which geometric solid is the best model for the cell in the bottom two layers of cells?

nevsk [136]

Answer:

The correct answer is option D. cube.

Explanation:

The image represent the cells similar to the epithelial cells whcih is found in various tissues such as muscle, nervous and many more. These cells are found in cuboidal, columnar and squamous sha[es which found in normally double layer or in multiple layers.

These cells are cube like in structure with a spherical nucleus present in the center of the cell known in assocation of various cells.