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Pavel [41]
3 years ago
11

Which of the following statements apply to the variation in human skin color?

Biology
2 answers:
masya89 [10]3 years ago
3 0
The correct options are as follows:
1. Human skin color variation is primarily determined by the type and amount of melanin pigment in the skin.
2. Human skin color variation likely evolved in response to differences in the intensity of sunlight around the world.
3. Human skin color evolve recently in hominid evolution, once some population of human ancestor migrated out of Africa.
The color of human skin is primarily determine by melanin. The intensity of the sun in the climate where one is living also affect the type of skin color that will dominate in a geographical area.
NemiM [27]3 years ago
3 0

The right answer is A, B, and D.

Over the millennia, the color of the skin of humans has adapted to the local sunshine.

A natural filter, melanin, has gradually developed under the influence of this selection pressure.

Melanin is a dark-colored pigment (from black to reddish brown) found in the skin, hair, hair and the membrane of the eye. The amount of melanin in an individual depends on several factors such as heredity, exposure of the skin to the sun (epigenetic factors) hormone levels or certain diseases.


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nataly862011 [7]

Answer:

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Transverse waves contain _____ & _____, while longitudinal waves contains ______ & _________.
nlexa [21]

Transverse waves contain crests & troughs

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2 years ago
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Ghella [55]

Answer:

Look at the picture below!!!

Explanation:

7 0
3 years ago
Vital body systems begin to lose function as you age. aging effects all of the body's cells, tissues, and organs which in turn a
Elina [12.6K]

The right option is; a. fatty substances called lipids inside the cell

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3 0
3 years ago
Read 2 more answers
If LAL (limulus amebocyte lysate) turns into a gel when exposed to a sample, it
Vlad1618 [11]

Answer: The statement is TRUE.

Explanation:

Gram negative bacteria is a type of bacteria that possesses, from the interior to the exterior, a cytoplasmic membrane, a thin peptidoglycan layer, and an outer membrane containing lipopolysaccharide. The lipid portion of the lipopolysaccharide complex of the outer layer acts as an ENDOTOXIN.

The endotoxin of the gram negative bacteria can be detected in research or biomedical laboratories through a technique called LIMULUS AMEBOCYTE LYSATE test.

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means the sample is contaminated with endotoxins of gram-negative bacteria.

6 0
2 years ago
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