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bixtya [17]
3 years ago
6

What is the name of the geologic formation famous for preserving cambrian soft-bodied animal fossils?

Biology
1 answer:
Flura [38]3 years ago
4 0
I think burgess shells would be the answer

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Which of the following is the main mechanism by which populations change
elena-14-01-66 [18.8K]

Answer:

D Natural selection

Explanation:

This is because the dominant Gene according to Charles Darwin is strong enough to adapt to any environment.Making it a survival of the fittest

6 0
3 years ago
What are the levels of organization in biotic factors?
Nuetrik [128]

Nivel subatómico: lo integran las partículas más pequeñas de la materia, como son los protones, los neutrones y los electrones.

Nivel atómico: lo componen los átomos, que son la parte más pequeña de un elemento químico que puede intervenir en una reacción.

Nivel molecular: está formado por las moléculas, que se definen como unidades materiales formadas por la unión, mediante enlaces químicos, de dos o más átomos, como por ejemplo una molécula de oxígeno (O2) o de carbonato cálcico (CaCO3).

Espero te sirva

7 0
2 years ago
Which of the following describes how slavery changed the life of Africans in North Americans?​
Tanzania [10]
Freedom in American history and
6 0
3 years ago
Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive gene 43) in humans. A woman whose fath
LiRa [457]

Answer:

50% or 1/2. The result remains unchanged if the husband were to have G6PD.

Explanation:

For X-linked recessive inheritance, a female (XX) needs two recessive alleles to be affected while a male needs only one (XY). It is hypothetically assumed that the Y chromosome does not carry any trait.

Assuming the allele for the disease is represented by g, a woman whose father suffered from G6PD is a carrier for the disease with genotype X^GX^g. A normal man will have the genotype X^GY. When the 2 marries:

X^GX^g   x   X^GY = X^GX^G (normal female), X^GY (normal male), X^GX^g (carrier female), X^gY (affected male)It thus means that 50% or 1/2 of their sons will be expected to have G6PD.

Now, assuming the husband has G6PD, the mating becomes:

X^GX^g   x   X^gY = X^GX^g (carrier female), X^GY (normal male),  X^gX^g (affected female), X^gY (affected male)50% or 1/2 of their sons is still expected to have G6PD. The ratio remains unchanged.

3 0
3 years ago
If a DNA molecule has 24% adenine, what is the percentage of guanine in the same DNA molecule?
artcher [175]

Answer:

26%

Explanation:

Adenine pairs with thymine.

Guanine pairs with cytosine.

If 24% of the DNA molecule is adenine, that means that there is 24% thymine. This is because they pair together so they have to be equal. That is 48% of the DNA molecule. To find the percentage of guanine, we need to minus 48% from the total 100%.

100 - 48 = 52

Then divide by 2 because you have guanine AND cytosine.

52/2 = 26

Therefore, your final answer is 26% of guanine is in the DNA molecule.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

5 0
3 years ago
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