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velikii [3]
3 years ago
14

The Pangaea theory supports the theory of plate tectonics because _____.

Biology
1 answer:
il63 [147K]3 years ago
7 0
The correct answer is:  [B]:
____________________________________________________
      "it is based on the idea that all the present continents were one supercontinent".
___________________________________________________________
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ribosome in the cytoplasm

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The second step in making a protein occurs in the ribosome in the cytoplasm.

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The ozone layer serves as____ and protects us from harmful UV radiation that comes from the.
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Our solar system is located very close to the center of the Milky Way galaxy, outside of the spiraling arms.
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<em>Answer,</em>

<em><u>False</u></em>

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State what would happen to the plant population if the number of decomposers decreased and explain why this would happen.​
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8 0
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In a certain plant, tall stems (t) are dominant to short stems (t). a farmer crosses a short-stemmed plant with a heterozygous l
melisa1 [442]

The answers would be:

Genotype                Phenotype

     Tt                      Tall stemmed

     tt                       Short stemmed

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

<u />

<u>You can read on to see how this was done:</u>

Tall stems (T) are dominant to short stems (t).

First figure out the genotypes of the parents. We have a short-stemmed plant and a heterozygous long-stemmed plant cross.

For short stem to occur, you need 2 pairs of short alleles. So the first parent would have a genotype of tt.

Heterozygous long-stemmed means that the parent has one of each allele. So the genotype of the second parent would be, Tt.

Now we can make our Punnett Square.

tt x Tt

<u>       t        t  </u>

<u>T |  Tt  |   Tt</u>

<u>t  |   tt  |   tt</u>

Let's list down the genotypes and phenotypic results.

Genotype        no.         Phenotype

     Tt                 2           Tall stemmed

     tt                  2           Short stemmed

So from that we can answer the other questions:

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

8 0
4 years ago
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