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Sloan [31]
3 years ago
6

You were driving through the Great Plain of Nebraska to northern Idaho. Gradually, the grassland gave way to tall conifers. Thro

ugh which biomes did you travel?
Biology
2 answers:
oksian1 [2.3K]3 years ago
6 0
You traveled through the forest
melamori03 [73]3 years ago
6 0

Temperate grassland to coniferous forest

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In gel electrophoresis, what is the agarose used for?<br> I NEED HELP I HAVE 4 mins left on my exam
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Explanation: Agarose gel electrophoresis separates DNA fragments according to their size. Typically, a DNA molecule is digested with restriction enzymes, and the agarose gel electrophoresis is used as a diagnostic tool to visualize the fragments. Electricity is used to move DNA molecule fragments through the agarose gel.

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True/false
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Explanation:

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3 years ago
Amenorrhea may occur among women at fat levels as high as:
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The correct answer is "16%"

16% of body fat in women is considered as low as normal body fat levels in women normally ranges from 22% to 25%. In cases of low body fat levels (i.e. in athletic women), there will be relative amenorrhea because of the suppression of the follicle-stimulating hormone and the luteinizing hormone leading to a type of amenorrhea called athletic amenorrhea.
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2 years ago
A biology student caught and tagged 50 trout in a small lake. After two weeks, the student caught another 40 trout and found tha
Vlad1618 [11]

The best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

<h3>Mark and recapture method</h3>

The formula for calculating the estimated number of individuals in the population is given as:

  • N = (M*C) / R

where:

  • N = estimated Number of individuals in the population
  • M = number of individuals captured and Marked
  • C = total number Captured the second time (with and without a mark)
  • R= number of individuals Recaptured (those with a mark)

Calculating the estimate trout population:

N = (50*40)/4

N = 50

Therefore, the best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

Learn more about mark and recapture method at: brainly.com/question/10646744

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2 years ago
What three cellular structures are found in plant cells but not animal cells?
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C! Because animal cells don’t have a cell wall! Have fun in Science!
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