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2 years ago

Why you need the respiratory system ,when you kick a ball?

Biology

1 answer:

Serga [27]2 years ago

4 0

Answer:

Explanation:

You need the respiratory system when you kick a ball because you need to be able to breath but if you are playing soccer this benefits the cardiovascular fitness level. Cardiovascular fitness is, according to the American Sports Medicine Institute, the efficiency of your heart, lungs and vascular system to deliver oxygen to your muscles to maintain activity.

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What membranes lines the cavities and tubes in the digestive and respiratory system

Gwar [14]

Firstly they are not membranes and they are villi's which increase the surface area during digestion

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3 years ago

What accounts for the fact that there are far more substances than are listed on the periodic table?

vivado [14]

This is because elements are pure substances with only one atom. When two or more elements are combined, you get compound elements; which allows for more substances to be created.

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2 years ago

An organism that reproduces using binary fission, a type of asexual reproduction, creates an identical copy of a cell when

Yuliya22 [10]

It is A, the cell is divided into a parent cell and daughter cell (mitosis)

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3 years ago

Read 2 more answers

When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferenc

Komok [63]

Answer:

Explanation:

Random distribution of the Isopods should be 50/50 in A and B.

Chi-square = $\frac{(O - E)^2}{E}$ where O = observed frequency and E = expected frequency

Chamber O E Chi-square

A 18 10 $\frac{(18 - 10)^2}{10}$ = 6.4

B 2 10 $\frac{(2 - 10)^2}{10}$ = 6.4

Total Chi-square = 6.4 + 6.4 = 12.8

Degree of freedom = 2 - 1 = 1

Tabulated Chi-square (α = 0.05) = 3.8415

The calculated Chi-square exceeds the critical value, hence, it is significant and not due to random.

The correct option is c.

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3 years ago

7. During osmosis A) Pure solvent diffuses through a membrane, but solutes do not. B) Pure solutes diffuse through a membrane, b

MrRissso [65]

Answer: Option A.

Pure solvent diffused through a membrane but solutes do not.

Explanation:

Osmosis is process where solvents or molecules move from a region of low solute concentration to a region of high solute concentration through a semipermeable membrane which tend to balance the concentration of solutes. Osmosis is passive transport i.e it does not require energy for movement.

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2 years ago