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BARSIC [14]
3 years ago
15

Which of the following best describes what most experts believe about Homo sapiens?

Biology
1 answer:
Oduvanchick [21]3 years ago
8 0
A. they arose out of Africa less than 200,00 years ago
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75%

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5 0
3 years ago
Compartments A and B are separated by a membrane that is permeable to K+ but not to Na+ or Cl-. At time zero, a solution of KCl
DaniilM [7]

Answer:

The electrical and diffusion potentials for K+ will be equal in magnitude and opposite in direction.

Explanation:

The cell potential may be defined as the potential difference between the inside of the cell and outside the cell. This difference is important for the transmission of nerve impulse.

The equilibrium condition may be defined as the condition at which  the exit and the entrance of the ions will be equal. As the information in the question, Only potassium ions will move inward and outward of the cell. The potassium ions will move in opposite direction since the equilibrium has been reached.

Thus, the correct answer is option (D).

5 0
4 years ago
The law of ___ b elps explain why the density of air as the altitude above earth's surface increases
crimeas [40]
The answer is The law of ''gravity'' helps explain why the density of air as the altitude above earth's surface increases.
7 0
3 years ago
Read 2 more answers
Where are amphibians who eat livingplants most likely to live in a lake
goldfiish [28.3K]

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the littoral zone

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5 0
3 years ago
According to the general equation for conditional probability, if p (a^b')=1/6 and p(b')=7/12 , what is the value of p(a[b)?
Alex
P(B) = 1 - P(B') = 1 - (7/12) = 5/12 <span>P(A∩B)=<span><span>P(A∩<span>B′</span>)/</span><span>P(<span>B′</span>) </span></span>× <span><span>P(B)/</span>1

</span></span>Plugging values into the last equation we get: <span>P(A∩B)=<span><span>1×12×5 / </span><span>6×7×12 </span></span>= <span>542</span></span>
Now we can make use of the following formula <span>P(A|B)=<span><span>P(A∩B) / </span><span>P(B)</span></span></span><span> by plugging in the values that we have found.
</span>
<span>5/42 is the numerator and the denominator is 5/12.
</span>

The bottom (denominator) is P(B) which equals 5/12.

<span>P(A|B)=<span><span>5×12 / </span><span>42×5 = 6/210

6/210 = 2/7

</span></span></span><span>p(a[b]) = 2/7</span>

5 0
3 years ago
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