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PIT_PIT [208]
3 years ago
14

The protein on the centromere that attaches to a spindle fiber is calef​

Biology
1 answer:
fiasKO [112]3 years ago
4 0

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My nickname - Lovely

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Which of the following can occur in a polar cell
Solnce55 [7]

Phospholipid can occur in a polar cell.

You can put the options for your accurate answers in comment box...

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How has the human population changed during the last 50 years
saul85 [17]
The answer for your question is A.
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Read 2 more answers
g One can measure ATP production from isolated mitochondria in vitro (in a test tube). Changing the pH of the solution that the
Damm [24]

Answer:

This will lead to an  decreases  in the ATPs synthesis. This is because low pH , high acidity favours ATP synthesis, because it increases the  proton concentration for electrochemical gradients needed for energy that  ATPase enzymes makes used of   synthesis  of ATPs.

Therefore a rise in the pH(low acidity) lowers protons levels, and therefore reduced electrochemical gradients , with a drop in energy for ATPs synthesis.

Explanation:

5 0
3 years ago
1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub
boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.

4 0
3 years ago
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