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Katarina [22]
4 years ago
11

Which best describes how long it usually takes for speciation to occur

Biology
1 answer:
Margarita [4]4 years ago
4 0

Answer: B

Explanation: The creation of a new species takes many, many generations.

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A _____ is a section of a chromosome that codes for a trait. The specific combination of alleles an organism has is called its _
Lesechka [4]

Answer:

A gene is a section of a chromosome that codes for  trait.The specific combination of alleles an organism has is called its genotype which affects the organisms features.

Explanation:

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Which of the following is not caused by a virus?
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Tuberculosis.

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it is caused by a bacterium which can attack any part of the body such as the kidney, spine, and brain. not everyone infected with TB becomes sick

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2 years ago
7. Explain why we have 4 seasons.
Juliette [100K]

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The four seasons happen because of the tilt of the Earth's axis. At different times of the year, the sun's rays hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer.

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4 0
3 years ago
Using a key which organism has the largest population? Which organism has the smallest population?
Vikentia [17]
Largest- Oak trees Smallest- Toads
4 0
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True or False: Contractions of smooth muscles are voluntary. It happens with your control.
andrey2020 [161]

Answer:

False

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Smooth muscle is under autonomic nervous system control (which is something you cannot consciously control). Same thing is for cardiac muscle.

The only thing you can control is skeletal muscle like your hands and feet.

6 0
2 years ago
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