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alexdok [17]
3 years ago
13

Why is variation required for natural selection?

Biology
2 answers:
aalyn [17]3 years ago
7 0

Answer:

Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation. random mating between organisms.

Explanation:

Gelneren [198K]3 years ago
6 0

Answer:

Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population.

Explanation:

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Which type of molecule contains the alcohol glycerol? which type of molecule contains the alcohol glycerol? carbohydrate phospho
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The type of molecules that contains the alcohol glycerol are PHOSPHO-LIPIDS.
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4 years ago
la reproducción se realiza a través de células especializadas conocidas como______los cuales aportan la mitad de informacion____
weqwewe [10]

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8 0
3 years ago
The skin is richly supplied with arteriovenous anastomoses in which blood flows directly between an artery and a vein, bypassing
yaroslaw [1]

Answer: Temperature control

Explanation:

Arterio-venous anastomoses (AVAs) are direct connections between small arteries and small veins. In humans they are numerous in the glabrous skin of the hands and feet.

They are very significant in body temperature control. These temperature control are under the dual control of the central nervous system and the local thermal influence. While the arteriovenous anastomoses control the skin temperature through volume changes in the superficial venous bed, the arterioles and capillaries operate by generalized dilatation which results both in increased temperature and in redness of the skin.

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3 years ago
How and why do organisms interact with one another?
dedylja [7]

Answer:

It's in their makeup to interact

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They need to interact to survive, to exist, to reproduce!

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3 years ago
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How can bacteria become drug resistant and how that impacts humans and healthcare ? ⚠️!worth 30 points!⚠️ helppp
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Antibiotic resistance occurs when bacteria change in response to the use of these medicines. Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria

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hope this helps :)

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