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aniked [119]
3 years ago
12

What are two roles of the membrane proteins?

Biology
1 answer:
jek_recluse [69]3 years ago
7 0
<span>Membrane receptor proteins relay signals between the cell's internal and external environments.
<span>
Transport proteins move molecules and ions across the membrane.</span></span>
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13)
Julli [10]

Multiply 5730 years by 2 since two half-lives have gone by for carbon.

<u>Explanation</u>:

The half-life of a radioactive isotope depicts the measure of time that it takes half of the isotope in an example decay. On account of radiocarbon dating, the half-existence of carbon 14 is 5,730 years  

The half-life of carbon-14 is 5730 years.  

In this manner, after  

1 half-life there is 50 % = 1/2 of the first amount left.  

2 half-lives there is 25 % = 1/4 of the first amount left.  

25% is two half-lives.  

Every 50% of life requires 5730 years.  

So two half-lives require 2 × 5730

6 0
3 years ago
The axons of the retina culminate in the ___ nerve which forms a ___ spot on the retina.
qaws [65]
The axons of the retina culminate in the optic nerve which forms a blind spot on the retina.

I hope this helps!
7 0
3 years ago
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Identify two reasons why the energy values are different between the primary and secondary consumer?
Dmitrij [34]
Primary eats grass and plants and the secondary eats the primary to get the energy it needs to live
4 0
4 years ago
What is the nutrient that helps fulfill a human
bija089 [108]

Answer:

Vitamins, minerals, protein, fats, and more.

Explanation:

7 0
2 years ago
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Lichens are among the slowest-growing organisms, but their tolerance of environmental extremes enables them to colonize habitats
bekas [8.4K]

Answer:

The correct option is B.

Explanation:

Lichens  is regarded as a mutual relationship between a mycobiont and photobiont, the relationship is targeted at enhancing their survival in extreme environments. The mycobiont is a fungal while the photobiont is usually a green alga or a mycobacterium. Each of the organism has their specific tasks; the mycobiont provides suitable habitat for the photobiont while the photobiont provide energy for the whole system.

7 0
3 years ago
Read 2 more answers
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