Why does our body need a defense system ?

Answers

Answer 1

Answer:

Answer:

Explanation:

You have external defense systems, which include your skin, tears, mucus, saliva, stomach acid, cilia (small hairs) and helpful bacteria. ... The skin stops pathogens from entering the blood, at least when you're not bleeding. The tears, mucus, and cilia trap them and help push them back out of your body.

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Why is it relatively rare to observe a solar eclipse

Answers

A solar eclipse happens when the moon moves between the sun and earth casting a shadow on the earth. Since the moon is small in comparison to the earth, the shadow cast only covers part of the surface area of the earth. You have to be in the right place to see the eclipse because of the narrow path of the shadow.

What is diastole? what is systole?

Answers

Diastole is the part of the cardiac cycle when the heart refills with blood following systole(contraction). Ventricular diastole is the period during which the ventricles are filling and relaxing, while atrial diastole is the period during which the atria are relaxing.

Diastole- cardiac cycle when the heart refills with blood following systole
systole-part of the cardiac cycle when the ventricles contract.

Please need some help ?

Answers

Argon (Ar) is in group 18. Argon ____.

has properties similar to other elements in group 18

does not react readily with other elements

is part of the noble gas group

If an atom in neutral and has 8 protons how many electrons would it have

Answers

it would have 8 because the positive charge of each proton and negative charge of each election completely cancel each other out. I hope that helps.

It will have 8 electrons. A neutral atom always has equal number of electrons and protons.

Interpretations based upon emotions or opinion are considered:factual
objective
subjective
scientific

Answers

The interpretations based upon emotions or opinions are considered to be subjective. Thus, the correct option is C.

What are subjective interpretations?

Subjective Interpretations are the explanation or opinion of what something actually means. The dispute here is based on the two widely differing interpretations of the law. The rules are vague and open to the interpretation. It is difficult for many people in the society to accept a literal interpretation of the Bible.

The interpretations which are based upon the emotions or opinions are considered as the subjective interpretation.

Therefore, the correct option is C.

Learn more about Interpretations here:

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The answer will be subjective.

Because thinking with your emotions makes you have a personal reaction.

I hope this helps

In which step of the water cycle does water return to the surface of Earth? a. condensation c. evaporation b. precipitation d. runoff