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tankabanditka [31]
3 years ago
10

Describe the two categories used to classify physical changes

Biology
1 answer:
Fed [463]3 years ago
5 0
The two categories that are used to classify physical changes are Reversible and Irreversible.
Reversible means that the matter can convert to gas, liquid and solid and then convert back to gas, liquid or solid. So it means it can convert back and forth. <span>Irreversible means that matter cannot be converted back as it is before.</span>
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Which set of alleles is purebred recessive?<br> A) aa<br> B) Aa<br> C) AA
emmasim [6.3K]

Answer:

aa

Explanation:

the answer is pretty obvious it would be a a because a dominant allele would be to Capitol a and a lower capital a and one capital a would be a mix and a purebred would be to lowercase A's

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2 years ago
Which class of amino acids contains side chains that would be unable to form hydrogen bonds with water?
seropon [69]

Answer:

Amino acids with non-polar side chains.

Explanation:

The class of proteins that is unable to form hydrogen bonds with water are the amino acids with non- polar side chains. This class includes the amino acids

Alanine

Valine

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How does gene flow directly contribute to evolution? I'll mark brainliest
kifflom [539]

Answer:

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Explanation:

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Gene flow can contribute in various ways such as migration or vertical gene transfer parent to progeny, however, it can lead to evolution directly by introducing new alleles into a population.

7 0
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Acrostic for the word energy
Naddik [55]
E is for Ethical, an upright person
N is for Noble, self-sacrificing
E is for Excellent, of the finest character
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7 0
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How far is the sun from me?
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Answer:

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Explanation:

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2 years ago
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