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BaLLatris [955]
2 years ago
11

Why do scientists use comparisons between fossils and existing species to classify organisms?.

Biology
1 answer:
Alex2 years ago
4 0
Scientists use similarities between organisms to connect them. The similarities and contrasts between fossils discovered in sedimentary rock and living species can be compared.
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ATP is a special____, and is the energy "currency" of the cell.A) nucleic acidB) carbohydratesC) lipidD) protein
Nataly [62]

Adenosine triphosphate or ATP is a compound that stores and provides the energy required to perform a variety of biochemical processes in living beings.

After being consumed, it losses one or two of its phosphates and becomes adenosine diphosphate (ADP) or adenosine monophosphate (AMP).

It can also act as a coenzyme and be a precursor to DNA and ARN because it is a nucleic acid.

Each molecule of ATP is a nucleoside triphosphate, formed by an adenine (a nitrogenous base), a ribose (a sugar), and triphosphate.

This means the correct answer is A) nucleic acid

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1 year ago
Mrs. allen is pregnant. her baby's legs and arms have started to grow, and its intestinal system is beginning to develop. the ba
Andreyy89
The stage is called embryonic
7 0
3 years ago
hey help if you know this please, it doesn't have lines indicating to where so I'm confused, also need help with number 7 please
Olegator [25]

Answer:

6.

The attached image contains the correct labels.

7.

a. 1

b. 6

c. 3

d. 10

e. 8

f. 4

g. 2

h. 7

i. 9

j. 5

Explanation:

7.

The entire cardiac cycle is as follows:

  1. Deoxygenated blood enters the right ventricle from the superior and inferior vena cava.
  2. The right atrium pumps the deoxygenated blood to the right ventricle.
  3. From the right ventricle, the deoxygenated blood moves to the lungs via the pulmonary artery.
  4. After gaseous exchange, the oxygenated blood returns to the heart into the left atrium via the pulmonary vein.
  5. From the left atrium, blood moves to the left ventricle.
  6. Oxygenated blood is pumped by the left ventricle into the aorta which supplies blood to all parts of the body.
  7. Deoxygenated blood, collected from the body again enters into the right atrium via the vana cava.

5 0
3 years ago
10. If you have ever noticed a sharp odor in the air after a thunderstorm
Stolb23 [73]

Answer:

Ozone high in the atmosphere is a pollutant, but near Earth's surface, it provides protection from harmful rays.

Explanation:

I had this test last week so here you go, let me know if it helped!

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3 years ago
What are the building blocks of protines
dlinn [17]
The building blocks are amino acids
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