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hammer [34]
3 years ago
15

How does physical activity benefit your health? Select the three correct answers. A. It increases height. B. It improves sleep p

atterns. C. It promotes mental clarity. D. It decreases BMI.
Health
2 answers:
Amanda [17]3 years ago
8 0

Answer:

B. It improves sleep patterns.

C. It promotes mental clarity.

D. It decreases BMI.

Explanation:

When it comes to health, most people attach to the stereotype of beauty, that is, to maintain a healthy looking, beautiful body. However, there are several benefits that physical activity promotes not only in our aesthetics, but also in our physical and mental health. Among the many benefits we can say that physical activity improves sleep patterns, promotes mental clarity and decreases BMI helping the person to have an ideal body mass index for the body.

storchak [24]3 years ago
4 0
B. It improves sleep patterns& D. It decreases BMI
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Figure 1. This figure shows the generalized structure of a prokaryotic cell.

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid (Figure 1).

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In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water.

A eukaryotic cell is a cell that has a membrane-bound nucleus and other membrane-bound compartments or sacs, called organelles, which have specialized functions. The word eukaryotic means “true kernel” or “true nucleus,” alluding to the presence of the membrane-bound nucleus in these cells. The word “organelle” means “little organ,” and, as we learned earlier, organelles have specialized cellular functions, just as the organs of your body have specialized functions.

Cell Size

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Figure 2. This figure shows the relative sizes of different kinds of cells and cellular components. An adult human is shown for comparison.

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Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions. Eukaryotic cells tend to be 10 to 100 times the size of prokaryotic cells.

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