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Damm [24]
3 years ago
8

Do you think you can answer this?​

Biology
2 answers:
Gnoma [55]3 years ago
8 0
Xe is not a formula
kenny6666 [7]3 years ago
3 0

Answer:

d (Xe)

Explanation:

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Chapter 1: Introduction: Evolution and the Foundations of Biology 1. _______ DNA is composed of building blocks called _____. a.
irina [24]

Answer:

C. Nucleotides

Explanation:

Nucleic acids are macromolecules which are polymers of nucleotides. There are two types of nucleic acids namely: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleotides are the building blocks of nucleic acids.

A nucleotide is made up of three components:

- A phosphate group

- A five carbon sugar called pentose sugar. In RNA the sugar is ribose sugar and in DNA the sugar is deoxyribose sugar.

- Nitrogenous bases: There are four different types of bases in DNA: adenine, guanine, cytosine and thymine. In RNA thymine is replaced by uracil. Adenine and guanine are purines whereas cytosine, thymine and uracil are pyrimidines.

Nitrogenous base and sugar together are called nucleoside and when phosphate is also attached then it is called nucleotide.

6 0
3 years ago
A 19-year-old male was stung multiple times by fire ants. He is experiencing obvious signs and symptoms of anaphylactic shock. Y
In-s [12.5K]
Repeat the epinephrine injection after consulting with medical control.
6 0
3 years ago
Which accurately describes reproduction in gymnosperms? Check all that apply.
nikitadnepr [17]

Answer:

Fertilized ovules grow into seeds

Some require heat for seed dispersal

Male and female cones may grow on the same plant

Explanation:

pls give brainliest to me pls and i hope i helped you out!

8 0
3 years ago
Read 2 more answers
I need this!! It’s important!!!!
dimaraw [331]

Answer:

D

Explanation:

3 0
3 years ago
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What multicellular forms of life evolved from the early single-celled organisms
natali 33 [55]
Humans is he answer
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