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Yuliya22 [10]
3 years ago
9

An H-R diagram is a graphical plot astronomers use to classify and interpret the life cycles of stars.

Biology
2 answers:
Juliette [100K]3 years ago
7 0

Answer:

I think it is true

Explanation:

Elena-2011 [213]3 years ago
4 0

Answer:

The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. ... After a star uses up all the hydrogen in its core, it leaves the main sequence and moves towards the red giant branch.

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this is an argument that makes an opposing point to another argument. it exspreses the view of a person who degrees with your po
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Answer:

The correct answer is - counterargument.

Explanation:

A counterargument is an argument that is made by a person against or the opposing point to another argument. Counterargument shows the point of a particular person who does not agree with your point or position on any particular thing or subject.

The counterargument is an argument that is always against the original statement or tries to refute the original statement.

Thus, the react answer is - counterargument.

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What is a polypeptide
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What are histones, and how are they arranged in nucleosomes? Drag the terms on the left to the appropriate blanks on the right t
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Answer:

1) c. five

2) a. lysine and arginine

3) g. two

4) d. four

Explanation:

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Basically, nucleotide comprises of the following parts;

1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.

2. A phosphate group.

3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.

The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;

I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.

II. Phosphate: this is the structural backbone that provides support to DNA.

Histones are a group of highly basic proteins that are mainly associated with deoxyribonucleic acid (DNA) in the nucleus of a living organism and then condense it to chromatin.

Histones include five main classes of relatively small basic proteins containing relatively large amounts of lysine and arginine. Nucleosomes are made of two each of four types of histones.

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