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Feliz [49]
3 years ago
7

What is an example of a mechanical barrier for our immune system?

Biology
2 answers:
dybincka [34]3 years ago
6 0

Answer:

a skin

Explanation:

Mechanical barriers physically block pathogens from entering the body. The skin is the most important mechanical barrier. In fact, it is the single most important defense that the body has against pathogens

navik [9.2K]3 years ago
5 0

I think it is nose hairs because it keeps harmful things from entering through your nose.

Answer is B.

*Please correct me if I am wrong.

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Which of the following would describe Lamarck’s ideas about evolution?
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Natural selection is the process in which some organisms that show better adaptation to the environment are more likely to produce an offspring. In the case of the exercise, the answer is:

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1 year ago
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Eukaryotic cells that contain more than two sets of genetic information are referred to diploid (option B).

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Therefore, eukaryotic cells that contain more than two sets of genetic information are referred to diploid.

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