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Nostrana [21]
3 years ago
8

What happens to cause a female to begin puberty?

Biology
1 answer:
SCORPION-xisa [38]3 years ago
8 0

Answer:

peiriods

Explanation:

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What determines an organism's phenotype?<br> A.age<br> B.genotype<br> C.random mutations
Bingel [31]

Answer:

B. genotype

Explanation:

Genotype determines an organism's phenotype.

5 0
4 years ago
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The correct answer for the question that is being presented above is this one: "B. Perfringens food poisoning." 

The correct answer for the question that is being presented above is this one: "<span>C. It is listed with the CDC as a notifiable disease in its annual summary."</span>
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Please help me with this question
skelet666 [1.2K]

Answer:

osmosis is the movement of water molecules from a region of lower concentration to a region of higher concentration through a semi permeable membrane

Explanation:

note: osmosis only occurs in liquids

and a semipermeable is a membrane with very tiny holes that allows solvent molecules to pass through it readily but does not allow solute particles to pass through it

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3 years ago
What characteristic of viruses distinguishes them from cells?
Helga [31]

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They are acellular, that is, they contain no cytoplasm or cellular organelles. They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery.

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The respiratory system supplies oxygen to the blood in the body, while removing carbon dioxide. Which system directly interacts
Olegator [25]

Answer:

The correct option is <u>C. The nervous system when the brain regulates the body's breathing and heart rate.</u>

Explanation:

The main function of the respiratory system is to exchange oxygen for carbon dioxide in the body.

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The brain regulates the rate at which a person breathes. This rate is very important to breathe in the right amount of oxygen and to breathe out the right amount of carbon dioxide.

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