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Alexxx [7]
2 years ago
5

A student made the following table comparing the support structures in animals: Examples of Support Structures in Animals Exoske

leton Skeleton .The hard covering on the outside of invertebrates Helps support the body but prevents some movement The internal skeleton or backbone of vertebrates .Helps support the body and protects the internal organs. What statement best explains why the list is incorrect? Soft skin covers the exoskeleton in invertebrates. The exoskeleton helps support movement by working with the muscles. Invertebrates contain an internal skeleton or backbone. The skeleton protects and prevents movement in vertebrates.
Biology
1 answer:
kotegsom [21]2 years ago
3 0

Answer:

The exoskeleton helps support movement by working with the muscles.

Explanation:

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1. In pea plants, tall (T) is dominant to dwarf (t). Show the cross
MA_775_DIABLO [31]

Answer:

Tt - 2/4 = 1/2 or 50%            Heterozygous TALL

tt - 2/4 = 1/2 or 50%             Homozygous Dwarf

Explanation:

So let's make a Punnett for this so you can see what the outcome is yourself:

Tall is <u>dominant</u> - T

Dwarf is <u>recessive</u> - t

Heterozygous means that they have one of each allele. The genotype of one parent would be then Tt.

***It is heterozygous tall because Tall is a dominant trait so if it is accompanied by the recessive trait dwarf, then the Tall allele would mask it.

The other parent is a dwarf plant. The genotype would then be tt.

*** Now for a recessive trait to appear, it should not have a dominant trait mixed with it, which could mask it. The result then is homozygous recessive or homozygous Dwarf.

So now that we know the genotypes of the parent plants, we can put it into a Punnet:

    t      t

T  Tt   Tt

t   tt    tt

As you can see, out of the 4 outcomes we have:

Tt - 2/4 = 1/2 or 50%            Heterozygous TALL

tt - 2/4 = 1/2 or 50%             Homozygous Dwarf

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Answer:

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