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sashaice [31]
3 years ago
5

Do Now: Why do people have different shades/colors of skin?

Biology
2 answers:
Yuliya22 [10]3 years ago
8 0

Answer:

People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin.

vovangra [49]3 years ago
4 0

Answer:

People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.

Explanation:

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Finches that live in an isolated area with limited access to seeds and water is an example of what mechanism in Darwin's theory
Brums [2.3K]

Answer:

c. Limits on population growth

Explanation:

Darwin was heavily influenced by Malthusian theory of how population growth was influenced by growth limits. For Darwin, the population growth of species of living beings would be influenced by the limits imposed by the environment in which these species live, through the amounts of natural resources available to the population.

Thus, Darwin concludes that when the environment allowed an abundance of natural resources, such as water and food, the population of living beings would tend to grow more, however, when natural resources are limited, the population would grow less. This is called "population growth limits".

An example of this can be seen in the question above, where finches that live in an isolated area have limited access to seeds and water.

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3 years ago
What is the primary source of energy for all food chains?
Darya [45]

Answer:

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Explanation:

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3 years ago
4. How does density affect refraction
borishaifa [10]
"The density of a substance determines how much light is refracted"  

Hope this helps :)
8 0
3 years ago
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What’s considered a normal pH level
attashe74 [19]

Answer:

7

Explanation:

pH ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline(basic)

8 0
2 years ago
Bose-Einstein condensates
IRINA_888 [86]

Answer:

Bose-Einstein condensate (BEC), a state of matter in which separate atoms or subatomic particles, cooled to near absolute zero

(0 K, − 273.15 °C, or − 459.67 °F; K = kelvin), coalesce into a single quantum mechanical entity—that is, one that can be described by a wave function—on a near-microscopic scale.

5 0
3 years ago
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