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In-s [12.5K]
3 years ago
6

What genes direct the

Biology
1 answer:
Valentin [98]3 years ago
3 0

Answer:

a. hox genes.

Explanation:

HOX genes have the following functions:

  • HOX genes are the homeobox subset.
  • They specify the areas of the embryo's body plan along the animal head-tail axis.
  • They are encoding Hox proteins that specify the position characteristics and ensure that the right structures form at the right position in the body.
  • They regulate high-level executive genes, such as transcription factors and intracellular signaling molecules, which adhere, number, form, and growth to cells.

The vertebrates are highly preserved.

The clusters and other genes occur uninterrupted.

Evolutionary, the heterogeneous regulatory areas between the genes most previously present are larger and more preserved than those present at the other ends of the clusters.

The characteristical feature is that these are homeodomain proteins with a highly preserved area of DNA binding encoded with homeobox gens.

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What type of behavioral adaptation is sleeping? Why?
nadezda [96]

Answer:

the behavioral adaptation of sleeping is called Hibenation

Explanation:

Hibernation is an adaptation that helps many animals conserve energy by remaining inactive, greatly slowing their metabolism and reducing their body temperature for days, weeks or even months at a time. specifically, animals hibernate in order to survive/live for  long periods when food is scarce.

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How does biogeography provide evidence for evolution.
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The global distribution of organisms and the unique features of island species reflect the evolution and geological change. Fossils. Fossils document the existence of now-extinct past species that are related to present-day species.

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2 years ago
A natural function of the body necessary to support life is called _________________
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Answer:brain

Explanation:

6 0
2 years ago
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The process by which an endospore rehydrates and begins cellular metabolism is termed _____.
Temka [501]

The process by which an endospore rehydrates and begins cellular metabolism is termed germination.

Endospore is the dormant form of asexual reproductive structure. It has a tough outer layer that is resistant to various unfavorable conditions, harmful chemicals, therefore protecting the inner contents. The endospore's tough layer breaks off only when the favorable conditions arrive.

Germination is the process where the dormancy of a seed or a spore breaks off and the enzymes present inside get activated. The outer protective payer of the endospore breaks off. After that the spore regains all its functionalities and the cell division begins.

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2 years ago
Define and describe osmosis​
ankoles [38]

Answer:

Movement of a solvent (such as water) into a solution with a higher solvent concentration by means of a semi-permeable membrane (as from a live cell), which tends to equal solute concentrations in the membrane on both sides.

Explanation:

Osmosis, the spontaneous transition, distribution, or diffusion of water and other solvents over a semipermeable membrane. In 1877, a German physiologist, Wilhelm Pfeffer, researched the process, which is important in biology.

Osmosis is the passage of water down its concentration gradient, across a semi-permeable membrane. An everyday example is a plastic wrap in your kitchen: it allows air and water vapor to move across it, but no water or food. The membranes of cells are semi-permeable, too.

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