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lorasvet [3.4K]
4 years ago
8

Why does our body need a defense system ?

Biology
1 answer:
algol [13]4 years ago
6 0

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.

pls mark as brainliest.................................

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Describe how mendel showed that the green-seed trait did not disappear but was only masked. Please help me :)
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Where does the spinal cord arise from the medulla oblongata?
mafiozo [28]

Answer:

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The bold part is what you need to know!

8 0
3 years ago
6−2(4+5)+6<br><br><br>what are the steps to getting the amswer -6
gregori [183]

6-2(4+5)+6

First, you go off of PEMDAS, (parentheses, exponients, mutiply, divide, add, subract), and you will mutiply -2 to the numbers in the parentheses, -2x4 and -2x5. Which will then give you -8 and -10.

Then you set up your equation as normal, except without parentheses, which will make the equation 6-8+-10+6.

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4 0
3 years ago
One global warming prediction might be
frutty [35]

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6 0
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TRUE because the earth and moon are always rotating, therefore we see different parts based on where we are at.

5 0
4 years ago
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