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anzhelika [568]
3 years ago
5

What is the body's first line of defense against disease?

Biology
1 answer:
KATRIN_1 [288]3 years ago
7 0

Answer:

The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

Explanation:

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Precipitation falls to the ground and eventually ends up in the ocean. Which
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Answer:A.By entering an open watershed

Explanation:

(APEX)

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3 years ago
DNA has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. One
Bingel [31]

Answer:

G= 22%

A=28%

T= 28%

Explanation:

Given that percentage of cytosine content (C) = 22%

Since C pairs with G, percentage of guanine content (G) would also be = 22%

Hence, G+C = 22+22 = 44%

This means that A+T = 100-44= 56%

Since adenine pairs with thymine so, percentage of A= percentage of T

Hence percentage of Adenine (A)= 56/2 = 28%

And percentage of Thymine (T) = 28%

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3 years ago
Volcanic islands such as the hawaiian islands form as a result of ________.
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Even more islands because it will cool and form more islands
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Fill in the blank below with the vocabulary word that best completes the sentence.
o-na [289]
Taxonomy is the classification of things; organisms.

Hope this helps.
6 0
3 years ago
Read 2 more answers
1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
astraxan [27]

1.   The oxygen requirements of an animal cannot be met by the process of     diffusion as diffusion is a very slow process. To overcome this, multicellular organisms have specialized cells and tissues for performing various necessary functions of the body such as intake of oxygen and food.

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4.   The various processes essential for maintaining life are nutrition, respiration, transportation, excretion, control and coordination.

here it is hope it helps you out...

8 0
3 years ago
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