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Bingel [31]
3 years ago
13

Why does a female need to maintain a thick uterus lining if fertilization does occur

Biology
1 answer:
bija089 [108]3 years ago
7 0
The uterus lining thickens because it provides protection for the baby to survive. When estrogen levels rise, the lining of the uterus thickens in preparation for fertilization.
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The first glycolysis rate-limiting enzyme is under various allosteric regulations. This protein is nearly inactive because of in
navik [9.2K]

Answer:

d. ATP;  Fructose-2,6-bisphosphate

Explanation:

Phosphofructokinase-1 is the enzyme that catalyzes the formation of fructose-1,6-bisphosphate from fructose-6-phosphate and ATP. The phosphofructokinase step is the first rate-limiting step of glycolysis.

Phosphofructokinase-1 activity is allosterically regulated. Its activity is increased whenever the cell's ATP supply is depleted or when its breakdown products, ADP and AMP accuulates in he cell. However, it is inhibited when the cell is amply supplied with ATP.

The activity of phosphofructokinase-1 is restored by fructose-2,6-bisphosphate, its most potent activator.

From the given options:

a. AMP :::: citrate  is wrong because AMP increases the activity of phosphofructokinase-1 and citrate is not its activator but an inhibitor

b. AMP :::: Fru-2,6-P2  is wrong because AMP increases its activity same as fructose-2,6-bisphosphate

c. ATP :::: citrate  is wrong because both citrate and ATP are inhibitors

d. ATP :::: Fru-2,6-P2  is correct as explained above

e. All of these is wrong because of the other wrong options above.

6 0
3 years ago
What are two events that can take place for Secondary succession to occur?
Nadya [2.5K]
Researched (copied and pasted so use in your own words)

Disturbances such as forest thinning, floods, fire and wind can all lead to secondary succession. Examples of secondary succession are the gradual replacement of old fields by forest or the vegetation recovery and change following wildfire occurrence.
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A because they can eat out of the trash where the others require thenforest to live. Hope this helped.
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In the lynx–snowshoe hare oscillating cycle of population growth, the lynx eat too many hares, thereby reducing the hare populat
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C. The lynx population crashes due to their food source being gone.

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