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viktelen [127]
3 years ago
14

Classify the events as autogenic or allogenic succession.

Biology
1 answer:
nydimaria [60]3 years ago
5 0

In ecology, allogenic succession is mediated by the abiotic components of the ecosystem, while the autogenic succession refers to the succession, which is mediated by the biotic components of an ecosystem.  

A volcanic eruption wiping out an entire island is an example of allogenic succession.  

A soybean crop helping in nitrogen fixation, leading to the development of other species is an illustration of autogenic succession.  

A tsunami devastating all the living organism in a habitat is an example of allogenic succession.  

Oak trees preventing the growth of smaller sun-seeking shrubs is an example of autogenic succession.  


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A certain bacterial mRNA is known to represent only one gene and to contain about
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Answer:

C) 30,000

Explanation:

According to the given information, the bacterial mRNA consists of about 800 nucleotides. Three consecutive nucleotides together make one genetic codon which in turn codes for one specific amino acid in the protein encoded by this mRNA.  

So, an mRNA with 800 nucleotides will have total 800/3 = 266.67 or 266 genetic codes. The protein encoded by this mRNA would have a total of 266 amino acids.  

Given that one amino acid imparts 110 units to the molecular weight of the protein, the protein with 266 amino acids have the molecular weight= 266 x 110 = 29260, that is about 30,000.  

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3 years ago
Ocean currents occur<br> because water has different<br> amounts of salt.<br> True of False ?
harkovskaia [24]

Answer:

False

Explanation:

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Which cell population of WBCs migrate to sites of injury and cross the capillary wall to accumulate within damaged tissues, wher
Harman [31]

Answer:

The correct answer is -  Basophils

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The granules which is secreted by basophils includes histamine, heparin, and serotonin.The histamine dilates blood vessels, the heparin prevents blood clotting.

These chemicals into the interstitial fluids enhances the inflammation initiated by mast cells.  

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3 years ago
Which of the following statements is part of the cell theory?
Sophie [7]
Answer would be D)<span>all of these</span>
6 0
3 years ago
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If you're referring to what a group of zebras is called. Its very interesting, a group of zebras is called a Dazzle or a Zeal!
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