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steposvetlana [31]
3 years ago
11

What is the fossil record?

Biology
2 answers:
Maurinko [17]3 years ago
7 0
History of life documented by fossils
likoan [24]3 years ago
3 0
Fossil record <span>refers to the placement of </span>fossils<span> throughout the surface layers of the Earth. Older </span>fossils<span> are buried more deeply than younger ones. Scientists use the placement of </span>fossils<span> as a guide for determining when life forms existed, and how they evolved.</span>
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If 2 organisms are in the same phylum, they are also in the same ____________.
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The answer would be kingdom
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3 years ago
Consider a cell in which Cl- distributes passively across the membrane according to the membrane potential. The resting membrane
UNO [17]

Answer:

1000 mM

Explanation:

Using V = -60 mV㏒₁₀[K/K'] where V = membrane potential = -60 mV, K = intracellular concentration = unknown and K' = extracellular concentration = 100 mM

So, V = -60 mV㏒₁₀[K/K']

-60  mV = -60 mV㏒₁₀[K/K']

dividing both sides by -60mV, we have

-60  mV/-60 mV = ㏒₁₀[K/K']

㏒₁₀[K/K'] = 1

taking antilogarithm of both sides, we have

[K/K']  = 10¹

multiplying both sides by K', we have

K = 10K'

K = 10 × 100 mM

K = 1000 mM

So, the intracellular Cl- concentration is 1000 mM

4 0
3 years ago
Need help will give brainliest
masha68 [24]

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5 0
3 years ago
Read 2 more answers
First person to answer it with all the question right gets brainly Est Question 1 (3 points)
Ksivusya [100]
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3 years ago
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The leucine zipper motif functions to A. mediate the physical association of two polypeptides. B. anchor transcriptional activat
Vera_Pavlovna [14]

Answer:

Option A (mediate...........polypeptides) would be the appropriate choice.

Explanation:

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Some other possibilities in question are not connected to something like the situation in question So that is the correct approach.

5 0
3 years ago
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