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Pani-rosa [81]
3 years ago
9

What is the main energy source?

Biology
2 answers:
klio [65]3 years ago
8 0
The Sun, if we're talking about Biology.
BartSMP [9]3 years ago
4 0
Like oil and gas an sometimes the sun
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Why are nucleic acids essential for life
borishaifa [10]

Answer:

Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

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3 years ago
Which of these is a reason why two different people might require different caloric intakes on a daily basis?
photoshop1234 [79]
According to the Dietary guidelines for
America, men aged 19 and older should
consume an average of 2.640 calories and
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COMMENTS
7 0
3 years ago
Describe the path an egg from the ovary to the outside of the female body
Elis [28]
The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle.
5 0
3 years ago
Arrange the sentences in order to describe how oxygen from air is transported to the cells in the kidneys.
AURORKA [14]

Answer:

The pulmonary veins carry oxygenated blood to the heart. Air enters the bronchioles in the lungs and reaches the alveoli. The capillaries join together to reach the arteries, transferring the oxygen. The oxygen-rich blood moves from the aorta and reaches the kidneys through a series of blood vessels.

5 0
4 years ago
A person who gets nervous often breathes faster. What does this show about organ systems?
Ronch [10]

The organ systems work together to regulate body processes. The correct option is B.

<h3>What is an organ system?</h3>

An organ system is a biological system made up of a collection of organs that collaborate to perform one or more functions.

Each organ in a plant or animal body serves a specific function and is made up of distinct tissues.

Every organ in the organ systems work in coordination to perform all the bodily functions. The organ systems work together to regulate body processes.

Thus, the correct option is B.

For more details regarding organ system, visit:

brainly.com/question/13278945

#SPJ1

6 0
2 years ago
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