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WARRIOR [948]
3 years ago
14

Distinguish between a trace element and an essential element. Give an example of each.

Biology
1 answer:
Misha Larkins [42]3 years ago
8 0

Trace element are needed only in small amounts and the plant do not ‘ die’ when they lack.

                                               While insufficient supply of an essential element can lead to major diseases and inhibit  main function of the plant and can ultimately kill the plant  


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Melting glaciers in Alaska leave open land which will go through primary succession. What conditions would most likely be presen
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The condition that is most likely to be present in the region left by the melting glaciers in Alaska is that algae and fungi growing on bare rock. This is because environment in primary succession is essentially deprived of vegetation and several kinds of organisms. Thus, plants are unable to grow since the soil lacks nutrients.   
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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

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  • Number of individual marked in 2nd catch = 18 dogs
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So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
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Is a tomato plant a single cell or multicellular? Explain with strong evidence It is for my science class
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8. A and B

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