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Romashka [77]
2 years ago
10

What part of the integumentary system blocks bacteria and fungi?

Biology
1 answer:
Keith_Richards [23]2 years ago
8 0
Function of integumentary system: PROTECTION<span>- barrier against infectious, chemical, radioactive, and physical damage.
- keratin and junctions block bacteria, fungi, and blunt objects.
-macrophages identify foreign particles and activate immune response.</span>
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If a DNA molecule is found to be composed of 40% thymine, what percentage of guanine would be expected.
Likurg_2 [28]

Answer:

10%

Explanation:

Chargaff postulated the complementary base pairing rule, where he stated that in the DNA molecule, Adenine (A) will always pair with Thymine (T) and Guanine (G) with Cytosine (C) i.e. A-T, G-C

Chargaff stated that the concentration of purines (Adenine and Guanine) is always equal to that of pyrimidines (Thymine and Cytosine) i.e. {A} + {G} = {C} + {T}

These equal concentration equals 100% in totality i.e. A+G+C+T= 100%

Thymine pairs with Adenine, if there is 40% of Thymine in the DNA molecule, it means there will be 40% of Adenine also. 40 + 40 = 80%. This leaves us with 100-80 = 20% for Guanine and Cytosine.

Since there will be an equal amount of Guanine and Cytosine too, Guanine will therefore, be 20/2 = 10%.

That is, 10% Guanine, 10% Cytosine.

8 0
2 years ago
Teeth patterns in animals and thorns in plants are examples of characteristics that a taxonomist might observe for keying.
Nadusha1986 [10]
The correct answer for the question that is being presented above is this one: "TRUE." <span>Teeth patterns in animals and thorns in plants are examples of characteristics that a taxonomist might observe for keying. The statement show a positive and true idea.</span>
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Which of the following involves spores of the same size?
Kisachek [45]
I believe the answer to this is Both
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3 years ago
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According to the principle of _______, a change in one species in a community results in a change in another.
oee [108]

The correct answer for above statement is:

<h3>A. coevolution</h3><h3>Explanation:</h3>

Coevolution is the method by which two or extra kinds emerge in tandem by exercising selection forces on each other. Coevolution happens when two or more species reciprocally influence each other's development.

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Learn more about Phenotypic Plasticity here-

brainly.com/question/24083818

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