What provides evidence for plate tectonics?

2 answers:

7 0

Some of the best evidence for the theory of plate tectonic are earthquakes, plants that are in different continents across the ocean,or mountains. Some of the best evidence for the theory of plate tectonic are earthquakes, plants that are in different continents across the ocean,or mountains.

finlep [7]3 years ago

5 0

One of the best evidence is earthquakes as well as mountain building, the way mountain building is made is when two plate collide and both start pushing upwards against the land to make famous mountains such as mount Everest but also keep in mind it take many years for it to form! Hope this helps you out on your quiz! :)

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Eye color is also determined by genes. Brown eyes are dominant, and blue eyes are recessive. What must be true for two brown-eye

Troyanec [42]

Answer:

The brown-eyed parents must be HETEROZYGOUS to produce a blue-eyed child

Explanation:

This question involves a single gene coding for eye color in humans. The allele for brown eyes (B) are dominant over the allele for blue eyes (b). This means that an individual that is heterozygous (Bb) will phenotypically have a brown eyes.

According to this question, a blue-eyed child (bb) will be produced when two brown-eyed parents are HETEROZYGOUS (Bb) for the eye color trait. This means that each of the parent donated the recessive allele (b) to produce the (bb) offspring. Please find the punnet square attached.

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Veronika [31]

Answer:

I want to say the answer is Electric Current

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3 years ago

Musya8 [376]

Similar DNA may support "common" ancestry. ☺

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Air molecules move from areas of ____ pressure to areas of ______ pressure

Serggg [28]

High pressure to low pressre

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3 years ago

I need help with the image (phenotypes and genotypes).

Flauer [41]

Answer:

See the answer below

Explanation:

1. Only one phenotype is present in the F1 generation offspring. Since tallness was dominant over shortness, all the offspring in the F1 generation appeared tall.

2. Two phenotypes are present in the F2 generation - 9 tall and 3 short. The short trait reappeared at the F2 generation.

3. The genotype of the F1 offspring would be heterozygous. Assuming the purebred tall is AA and the purebred short is aa:

AA x aa

Aa Aa Aa Aa

All the F1 offspring will appear tall and their genotypes would be heterozygous.

4. Assuming that the allele for height is denoted with A (a), the genotype of the purebred tall plant would be AA.

5. In a similia vein, the genotype of the purebred short plant would be aa.

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3 years ago