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AfilCa [17]
3 years ago
12

Which animals are living in a social hierarchy? Check all that apply.

Biology
2 answers:
netineya [11]3 years ago
7 0

Answer:

options:

2

3

5

Explanation:

just took the test goodluck mate

Assoli18 [71]3 years ago
4 0

Answer:

A Bengal tiger that lives and hunts alone in the forest

an adult meerkat that watches for predators while young meerkats play

male mountain goats that compete for the chance to mate with a female

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Convection currents produce the heat in the Earth’s interior.<br><br> True or False?
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7. What weather element (temperature, humidity, precipitation, air pressure, wind, and visibility)
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air temperature, air pressure, humidity of the air, amount and kind of cloud cover, amount and kind of precipitation, and speed and direction of the wind.

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Which structure is found only in plant cells and helps plants capture energy from sunlight?
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Answer:

Chloroplasts

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The substance used to separate the proteins from the dna
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DNA is deoxyribonucleic acid, which is insoluble in ethanol. In the process of centrifugation the addition of ethanol can aid to separate protein from its DNA.

<h3>What is centrifugation?</h3>

Centrifugation is a process of separating different molecules in a given sample that have different densities by rotating them in solution around an axis at high speed.

It is the frequently applied techniques in the molecular biology laboratory.

The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.

Thus, the substance used to separate the proteins from the DNA is alcohol or ethanol.

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2 years ago
Clara is a vegan and she does not drink milk, a food advertised as a best source of calcium. But she is not worried too much sin
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Explanation:

%DV label= 27%

1 cup of cooked collared greens= aprx 266.60 mg of Calcium

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For teenaged Clara

∵27 % DV= 270mg

% daily Calcium=  \frac{270}{1300}  * 100= = 20.8 ≈ 21%

=0.21

<u>21% of her daily calcium needs is in a cup of cooked collard greens.</u>

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