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EastWind [94]
3 years ago
10

Which type o go economic system do you think has been the most effective in promoting economic growth

Biology
1 answer:
allsm [11]3 years ago
7 0
Located throughout the body, veins return deoxygenated blood to the heart. Veins have valves to prevent backflow of blood and larger lumens (internal spaces) than arteries. The vein lumen has a smooth endothelium, or inner lining. The endothelium is part of the tunica intima, the innermost layer of the vein wall
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Which example correctly describes the relationship of form and function at the chemical level?
algol [13]

Answer:

The binding of chemical messengers to receptors often results in a shape change, which affects receptor function.

Explanation:

Binding of specific chemical messengers to the corresponding receptors of target cells brings about change in the shape of the receptors. This structural change in the receptor results in the generation of the desired response. It reflects how the form and specific configuration of substances or biomolecules affect their functions.

For example, binding of neurotransmitters to the receptors present on neurons opens the associated ligand-gated ion channels to allow the movement of specific ions through it. In the absence of bound ligand, these channels are present in a closed conformation.  

7 0
3 years ago
What effect does stabilizing selection have on variation in a population.
blondinia [14]

Answer:

Stabilizing selection results in a decrease of a population 's genetic variance when natural selection favors an average phenotype and selects against extreme variations. In directional selection, a population's genetic variance shifts toward a new phenotype when exposed to environmental changes.

Explanation:

I don't bite, don't worry

6 0
2 years ago
In rabbits, the gene for black fur is dominant over the gene for white fur. How can the appearance of white baby rabbits be expl
ozzi

Answer:

the baby would be black bc its the dominant gene

Explanation:

8 0
3 years ago
Only 2 and 3 thank you
Georgia [21]
2 would be A because fertilization is where the sperm cell and egg unite. 3 would be C because in the picture you can see how the division is occuring.
8 0
3 years ago
Please help me!!!
Agata [3.3K]
It's C. RNA uses Uracil in place of Thymine

<span>TGCAAT
</span><span>ACGUUA</span>
5 0
3 years ago
Read 2 more answers
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