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KonstantinChe [14]
3 years ago
10

How is information on age structure and sex ratios useful to demographers?

Biology
1 answer:
Jlenok [28]3 years ago
8 0
What kind of class is this, I’m ded
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Help me ans this question please.
Umnica [9.8K]
It’s a study of unusual behaviors,emotion,and thought hope this helped
3 0
3 years ago
You have begun work on a new experiment determining exactly how certain neurotoxins affect the nervous system. After running mul
Lynna [10]

When looking at a Neuromuscular Junction (NMJ), we know that neurotransmitters (NT) are released from the presynaptic cell and they then bind to the receptors that are located on the postsynaptic cell - this causes the effect of the NT being released.

So we are told that NT are still being released, however they are not having an effect. This would mean that they are probably being blocked by something - in this case, it seems that the neurotoxin is the culprit in the blocking of these receptors.

Therefore, if the NT cannot bind to the receptors on the postsynaptic cell, they are not going to have any effect, no matter how much NT is being released.

So the answer in this case is: The neurotoxin is most likely C) Blocking the receptors on the postsynaptic cell.

8 0
3 years ago
The first part of cellular respiration occurs in these compartments of the cell. ______________
Mandarinka [93]

Answer:

The correct answer is - cytoplasm of the cell.

Explanation:

Cellular respiration is the bunch of metabolic reactions that convert biochemical energy from the glucose or other nutrients into ATP ( adenosine triphosphate) and releases water and carbon dioxide as waste products.

This process has three stages and the very first stage is glycolysis which is taking place in the cytoplasm of the cell. In this stage, the glucose molecule converts into the two molecules of pyruvate and produce energy.

Thus, the correct answer is - cytoplasm of the cell.

3 0
3 years ago
A fish that normally lives in salty water is placed in a tank containing fresh water. What do you think will happen to the cells
Zarrin [17]
<span>✎ </span>A fish that normally lives in salty water is placed in a tank containing fresh water. The new environment with a higher solution will cause the fish cells to swell and burst.

Answer: C

Hope that helps. -UF aka Nadia
8 0
3 years ago
Read 2 more answers
V.W. Ekman is credited with developing the theory of _______.
Alekssandra [29.7K]

The correct answer is - Theory of the Ekman spiral

V. W. Ekman or Vagn Walfrid Ekman was a Swedish physical oceanographer. He is famous for his studies of the dynamics of ocean currents. Ekman developed a theory called as the “theory of the Ekman spiral”. This theory explains maintaining balance between frictional effects in the ocean and the Coriolis force. The force arises from moving objects in a rotating environment such as planetary rotation.

6 0
3 years ago
Read 2 more answers
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