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brilliants [131]
3 years ago
12

What evolutionary traits separate the races of man?

Biology
1 answer:
katovenus [111]3 years ago
4 0
<span>race is not a defined term in biology and cannot solely be explained by different groups having different genes</span>
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How do you put biogeochemical cycle in a sentence?
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Viruses are considered to be nonliving because
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Explanation:

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3 years ago
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Calculate the number of cells in a hummingbird, assuming it has a mass of 10-2 kg.
Nikitich [7]

The number of cells in a hummingbird, given the data is 10¹² cells

<h3>How to determine the mass of one cell</h3>

We'll begin by obtained the mass of a cell. This can be obtained as illustrated below:

Mass of 1 cell = 10 × mass of bacterium

But

Mass of bacterium = 10⁻¹⁵ Kg

Thus,

Mass of 1 cell = 10 × 10⁻¹⁵ Kg

Mass of 1 cell = 10⁻¹⁴ Kg

<h3>How to determine the number of cells in the hummingbird</h3>

The number of cells in the hummingbird can be obtain as follow:

  • Mass of 1 cell = 10⁻¹⁴ Kg
  • Mass of hummingbird = 10⁻² Kg
  • Number of cells =?

Number of cells = Mass of hummingbird / mass of 1 cell

Number of cells = 10⁻² / 10⁻¹⁴

Number of cells = 10¹² cells

Thus, the number of cells in the hummingbird is 10¹² cells

Learn more about number of cells:

brainly.com/question/21336646

#SPJ1

Complete question

Calculate the number of cells in a hummingbird assuming the mass of an average cell is ten times the mass of a bacterium. The mass of a hummingbird is of the order of 10⁻² Kg and that of a bacterium is 10⁻¹⁵ Kg

4 0
2 years ago
From the human perspective, what is the major problem with Earth’s water:
djyliett [7]

Answer:

97% is too salty to drink or use for irrigation

Explanation:

i hoped this helps you out

3 0
3 years ago
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