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Phantasy [73]
3 years ago
6

HURRY FOR 25 points

Biology
2 answers:
Brrunno [24]3 years ago
7 0

Answer:

C. Protects the body against foreign invaders

Explanation:

The immune system is definitive in helping the organism defending against pathogens, such as bacteria, viruses, protozoa, etc. The immune system employs defense through a multitude of mechanisms, such as Killer T cells, antibodies, macrophages, etc.

Rama09 [41]3 years ago
3 0

Answer:

C.

Explanation:

Here is a defintion of the immune system:

The major function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body.

C. matches that definition nicely.

:)

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Why sex-linked traits appear more often in males than in females.
umka21 [38]
Because for female sex link desease would require X°X° but for male X°Y so during crossing X linked dear are more common in male.
7 0
3 years ago
Read 2 more answers
You are analyzing a human pedigree for a new disease and discover that the disease occurs with the same frequency in both sexes
Natasha_Volkova [10]

Answer:

The correct answer is A. autosomal recessive

Explanation:

In an autosomal disease, the mutation occurs in the autosomal chromosome, not in the sex chromosome. In autosomal recessive disease if both the defected allele from parent comes in the child then only the child would be affected by the disease. If the offspring have single defected allele than he is said to be a carrier.

So as the defect is not in sex chromosome the disease will occur in the same frequency in both the sexes and if parents are carriers which means they are not affected by disease than 25% offspring can have the disease because out of four offspring one can get both the defected allele, one from each parent. So the correct answer is A.

6 0
3 years ago
Sulfur bacteria function as the main producers in what type of environment?
Colt1911 [192]

Answer:

C. Deep Ocean

Explanation:

5 0
3 years ago
For each of the genotypes below determine what the phenotype would be.
Oksana_A [137]
PP: Purple
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These are the correct answers for this.

Hope this helps
7 0
3 years ago
How does conduction differ from convection?
Free_Kalibri [48]

Answer:

Explanation:

I think the first one is correct.

The second one is half right (conduction works mostly in solids). The second part is not correct. Convection works mostly in gases.

The third one is wrong about waves. Conduction usually has direct contact of particles.

The last one is not correct. There is no visible movement of matter in conduction. The definition for convection is also incorrect.

6 0
3 years ago
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