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tigry1 [53]
3 years ago
10

Which selection correctly describes the role of calcium in coupling?

Biology
1 answer:
skad [1K]3 years ago
6 0
My selection is the answer
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Why are identical twins exactly similar while fraternal twins are dissimilar ??​
sergij07 [2.7K]

Answer:

Fraternal twins are “dizygotic,” meaning that they developed from two different eggs fertilized by two different sperm cells, while identical twins are “monozygotic” i.e., they developed from a single fertilized egg that split.

Explanation:

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3 years ago
Describe the movement of oxygen molecules if there were more oxygen molecules<br> outside the cell
Molodets [167]

Explanation:

Because there's a higher concentration of oxygen molecules outside the cell compared to the cell's cytoplasm, you'll see that oxygen diffuses into the cell along this concentration gradient. ... Because the molecules are moving at random, some will move out of the cell, but most will be moving in in this case.

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2 years ago
Why are the processes of oxidation and reduction important to cellular respiration?
DiKsa [7]

Answer:

During aerobic respiration, oxygen is reduced, donating an electron to hydrogen to form water. The entire process of cellular respiration oxidizes glucose. This produces the majority of the energy released in cellular respiration

Explanation:

im taking the same thing :)

6 0
3 years ago
The first organisms that perform photosynthesis involves about two.2 billion years ago. During the next few million years their
balandron [24]

Answer:

<em>The correct option is A) an increase in oxygen levels, which led to the extinction of many anaerobic organisms.</em>

Explanation:

Photosynthesis can be described as a process in which food (glucose) is produced by photosynthetic organisms by using carbon dioxide, water along with light energy from the sun. Oxygen is released as a by-product of this reaction. The process of photosynthesis initially allowed for oxygen gas to get accumulated in the air. This caused the rise of aerobic organisms who required oxygen for respiration. Before the photosynthesis organisms evolved, there was not enough oxygen gas on earth to support the life of aerobic organisms.

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3 years ago
In the following example, what is the independent variable? Hypothesis: Mice receiving Drug-A will pass through a maze faster th
Valentin [98]

I believe the indepent variable would be the drug they are administered.

All other variables stay the same except for this one.

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3 years ago
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