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vovikov84 [41]
4 years ago
9

Where are cells that circulate through the immune system produced?

Biology
2 answers:
arlik [135]4 years ago
6 0
"The cells of the immune system originate in the bone marrow, where many of them also mature. They then migrate to guard the peripheral tissues, circulating in the blood and in a specialized system of vessels called the lymphatic system."
Verizon [17]4 years ago
3 0

Answer: I beleive the anwser is in your gut

Explanation:

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through the break down of macromolecules

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Which best describes the reactants and products of photosynthesis?
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THE ANSWER IS (Reactants are formed inside the plant, and products are taken in from the environment by the plant. Reactants are taken in from the environment by the plant, and products are formed inside the plant.)

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5 0
2 years ago
A couple has five children, all with blood type A. The mother's blood type is O, and the fathers blood type is A. Based on this
ryzh [129]

Answer:

Homo-zygous, or AA

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Since the mother's type is recessive O, the man's blood type A would be dominant.  And because none of the children gained B or O blood types, it is likely the father only has A.  This indicates homo-zygous (same) genotype, thus meaning his blood type is AA.

the reason for the dash between homo-zygous is because Brainly tagged it as inappropriate?

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3 years ago
The complex level of organization within nature is called a(n) ___________________________ .
denis-greek [22]

Answer:

I'm pretty sure it's the organism level. If not then it's probably ecosystem.

Explanation:

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