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2 years ago

How does the changing coat of a weasel help it survive

Biology

1 answer:

neonofarm [45]2 years ago

4 0

Answer:

Explanation:

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Scientific evidence suggests that the entire human population descended from just several thousand African migrants about 50,000

zhannawk [14.2K]

Answer: Fossils and primitive drawings in several digs around the world continents.

Explanation: I would expect to find fossils and primitive drawings of these several thousand African migrants on different areas around the world. I would like to find primitive bones, specially skulls and teeths and stones with drawings and old writings representing the life of these small population in Africa who made the entire human population.

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2 years ago

There are 5 sacral vertebrae that are fused into ____________ sacrum.

Mariulka [41]

Is there any optional answers?

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3 years ago

Vitamin K is needed by the body to allow blood to dot. Most of the vitamin K in humans is produced by bacteria living in the lar

Norma-Jean [14]

Answer:

its not a or d I know that

Explanation:

In adults aged 20 and older, the average daily vitamin K intake from foods is 122 mcg for women and 138 mcg for men. When both foods and supplements are considered, the average daily vitamin K intake increases to 164 mcg for women and 182 mcg for men.

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3 years ago

How is information from the field of embry ology used as evidence for evolution

Crank

Embryology provides evidence for evolution because during their development, many organisms look similar, suggesting that very different organisms may have a common ancestor.

7 0

2 years ago

You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A s

inn [45]

Answer: 1. S = 0.77

2. R = 0.14

Explanation:

1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.

S = mean of selected parents - population mean

S = 6.48 - 5.71

S = 0.77

2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.

R = mean of offspring of selected parents - population mean

R = 5.85 - 5.71

R = 0.14

3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².

To calculate it, use Breeder's Equation:

R = h²S

$h^{2}=\frac{R}{S}$

$h^{2}=\frac{0.14}{0.77}$

h² = 0.18

4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.

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2 years ago

How does the changing coat of a weasel help it survive​

How does the changing coat of a weasel help it survive