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BaLLatris [955]
3 years ago
9

Hair would be dry and brittle without the presence of? A) sebaceous glands B) keratin C) melanin D) fat

Biology
2 answers:
mihalych1998 [28]3 years ago
8 0

Actually keratin is not correct

The correct answer to your question is

Sebaceous Glands.

juin [17]3 years ago
7 0

Answer:

A) sebaceous glands

Explanation:

Sebaceous glands are responsible for producing and secreting sebum, a substance that can lubricate and waterproof the skin and hair, giving them a brighter appearance.

However, a <u>high</u> <u>production</u> of sebum through these glands can cause exaggerated greasiness in the hair as well as acne on the skin.

Meanwhile, low sebum production can leave the skin dull and dehydrated, causing premature aging, and leaving hair dry and brittle due to lack of lubrication.

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Mating is rarely random. Many organisms choose a mate for specific reasons - body size, coloration, antler size, feather length,
poizon [28]

Answer:

Natural selection

Explanation:

Sexual selection refers to the natural selection where the allele frequencies of a population are changed due to nonrandom mating between the individuals. Certain preferences for the mate by organisms result in sexual selection. It is mostly exhibited by females.

For example, peahen prefers the peacocks with elaborate tail features as their mate. The sexual selection also occurs when there is competition among the members of the same sex for a mate. This type of sexual selection is mostly exhibited by males and results in fighting and display.

3 0
3 years ago
What needs to happen for recessive traits to be observed in an organism?
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Answer:

For recessive traits to be observed, dominant genes must be absent.

Explanation:

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In aa, there is no dominant gene present, and there are only recessive genes. Because of this, the recessive trait is observed!

4 0
3 years ago
I need help with this question
Savatey [412]
Anaphase
explanation
searching it up would’ve been easier smh
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