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3 years ago

What is some evidence that makes plate tectonics is such a firmly believed idea?

Biology

1 answer:

olga_2 [115]3 years ago

4 0

Answer:

There are many shreds of evidence that support the theory of plate tectonics and make it such a firmly believed idea. These pieces of evidence include fossils, glaciers, earthquakes and volcanic activity, the shape of continents, the magnetism of rocks on the seafloor, the mid-ocean ridge system, and others.

Fossils give an idea of the location of the plants and animals that once existed. Earthquakes and volcanic activity also help in determining the cause of the boundaries and rifts formed. The shape of the continents seems to be fit with one other that gives the idea that these were together and moved away from each other.

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Which of the following occurs during telophase II? Select all that apply.

Lorico [155]

Answer: 1, 3, 5

new nuclei begin to form

chromatids arrive at opposite ends of the cell

cytoplasm divides and two daughter cells are formed

4 0

3 years ago

A woman has blood Type A, her baby has blood Type AB: Is it possible that a man who has the blood Type A could be the father? Sh

Wittaler [7]

Answer:

No, it is not possible

Explanation:

Humans use the ABO blood group system where the A and B alleles are dominant over allele O but codominant with one another.

This system is such that;

Type A can only have genotype: iAiA or iAi

Type B can only have genotype: iBiB or iBi

Type AB can only have genotype: iAiB

Type O can only have genotype: ii

According to this question, a woman has blood Type A (iAiA or iAi) and her baby has blood Type AB (iAiB). This means that the father definitely contributed the allele B in order to have a baby with type AB. It also means that, according to the question, IT IS NOT POSSIBLE FOR A "Type A" father to produce that baby (see the punnet square attached).

Note: The father must contain an allele B in his genotype i.e. the father must be either type B (iBiB or iBi) or type AB (iAiB)

7 0

3 years ago

Which traits are polygenic traits? Check all that apply.

Mashutka [201]

Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin color across people. Skin color is also a polygenic trait, as are hair and eye color.

All the above:

Eye color

height

skin color

4 0

3 years ago

Why are chloroplasts found only in plant cells?

mr_godi [17]

Chloroplasts are only found in plant cells because it is the organelle that makes photosynthesis possible and it makes food for the plant cells as in it makes its own food and animal cells dont need them because animals eat other animals for that food

8 0

3 years ago

The function of the heart and blood vessels that supplies oxygen and nutrients to the entire body is known as:

MAXImum [283]

I think it might be the vein

4 0

3 years ago