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____ [38]
3 years ago
10

What system is responsible for defending the body against harmful substances? A.Circulatory system b.Musclar system c.Endocrine

system d.Immune system
Biology
1 answer:
oksian1 [2.3K]3 years ago
7 0

The right option is; d. Immune system

The immune system is responsible for defending the body against harmful substances.

The immune system is the body’s defense system that protects the body against infectious pathogens and other invaders. The immune system is composed of many biological structures (special cells, proteins, tissues, and organs) and processes that functions together to protect the body. White blood cells are one of the important cells of the immune system that destroy harmful substances or disease-causing organisms that invade body systems.

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Hope this helps, have a great day!

7 0
3 years ago
Transcription is the synthesis of ______
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Answer:

RNA

Explanation:

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5 0
3 years ago
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If a grandfather and grandchild are the only two with a genetic disorder, the disorder must be __________.
Anna35 [415]

The disorder where the grandfather and the grandchild are affected is related with the X chromosome and is called Sex linked or X linked disorder.

<h3><u>Explanation:</u></h3>

All the sex linked disorders are recessive in character i.e the normal allele is dominant over the mutated allele. In females, there are 2 X chromosomes, so the mutated allele is only expressed when there are both the mutated alleles, else its masked by the dominant normal allele. But in males, there's only one X chromosome, so if a mutated allele is present, it's readily expressed.

If the Grandfather is diseased, then he must have that mutated allele in X chromosome. Through reproduction, its received by the mother, but she is normal because the other allele received from grandmother was normal. But mother has one of the X chromosomes with mutated allele, which is received by the grandson who again becomes diseased. So the disorder must be X linked disorder

7 0
3 years ago
The daily values (dv) on the nutrition facts panel of a food label differ from the dris. the dv for total fat for a 1,750-calori
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the last one.


hope this helps

6 0
3 years ago
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