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Elis [28]
3 years ago
15

Which gas is transported by the circulatory system in humans and is used by cells during respiration to release energy stored in

food?
Biology
1 answer:
VladimirAG [237]3 years ago
5 0
Oxygen is transported 
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d

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Although your sister is not a scientist, she says that she uses scientific techniques in her everyday life. You do not believe h
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When conducting a population sampling study, on the first capture attempt, we _______ the captured individuals.
deff fn [24]

When conducting a population sampling study, on the first capture attempt, we tag, count, and release the captured individuals. Thus, option "D" is correct.

<h3>What is the mark-recapture method?</h3>

This is a method commonly used in ecology to estimate the animals in the population. A portion of the population is captured, marked and released. Another part of the population will, later on, be captured. This can be used to estimate the population in an assumption that the portion that was captured is proportional to the entire population. This is obtained by dividing the number of marked individuals by the individual marked on the second capture. This is one of the simplest and most practical methods of estimating the population.

Thus, option "D" is correct.

To learn more about the mark-recapture method click here:

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5 0
2 years ago
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What is the difference between continuous and discontinuous variation?
ira [324]
Discontinuous variation <span> refer to large, conspicuous differences from the parents</span>
This is where individuals fall into a number of distinct  categories, and is based on features that cannot be measured across a complete range
continious variation refer to small, indistinct differences from the normal condition.
Milk yield in cows, for example, is determined not only by their genetic make-up but is also significantly affected by environmental factors such as pasture quality and diet, weather, and the comfort of their surroundings
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The closest living relatives of land plants are
Shtirlitz [24]

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It was previously thought that land plants evolved from stonewort-like algae. However, new research shows that the closest relatives to land plants are actually conjugating green algae such as Spirogyra.

Explanation:The explanation was kinda in the answer.

If this helped please let me have brainliest!

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