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Rainbow [258]
3 years ago
13

The energy available at the trophic level that has secondary consumers is 50 kilocalories. How much of this energy is most likel

y transferred to the trophic level that has tertiary consumers?
A - 500 kilocalories
B - 50 kilocalories
C - 5 kilocalories
D - 0 kilocalories
Biology
1 answer:
mihalych1998 [28]3 years ago
4 0
<h2>Answer:</h2>

Option C is correct.

C. 5 kilocalories

<h2>Explanation:</h2>

Only a little amount of energy as 10% is transferred to the next trophic level. This is called 10% rule. So, in this case as the energy available at the secondary trophic level is 50 kilocalories and 10% of it is transferred into the tertiary level so it would be 5 kilocalories.

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Answer and Explanation:

Chemotaxis occurs when an organism moves toward a certain direction in response to a chemical.

Pollen is essential for the reproduction of plants because it produces a pollen tube that moves the sperm cells to the ovules that are located in the interior part of the flower. The pollen grains, produced in the anthers of a plant, <u>contain the male sex cells that will be transferred</u>. Chemotaxis plays a central role as it is a process in which chemical extracellular signals enable the movement of the pollen grains that will eventually enable plant reproduction.

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In which of the following ways is DNA replication different from DNA transcription?
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Answer:

Thymine is used in replication while uracil is used in transcription.

Explanation:

<em>New cells can only be created after transcription has taken place. Replication results in mRNA strands while transcription creates new DNA. Transcription happens outside the nucleus and replication happens inside the nucleus. Thymine is used in replication while uracil is used in transcription.</em>

DNA replication is a process whereby DNA makes a copy of itself while DNA transcription is a process whereby a messenger RNA is synthesized from a DNA strand.

Both processes involve the building-up of nucleotides or purine.pyrimidine bases. Replication involves building up of cytosine, guanines, adenine, and thymine bases while in transcription, the thymine base is replaced by uracil base.

Hence, the correct answer is that <u>Thymine is used in replication while uracil is used in transcription.</u>

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3 years ago
Light alerts the biological clock to slow down the secretion of which hormone that promotes sleep
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4 years ago
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Is there any options to choose from? multiple choice or do you have to write it yourself?
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Therefore "the copperheads are subspecies and the cottonmouth is a separate species".

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