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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:

ACA: Threonine

CAC: Histidine

Explanation:

To answer this question we need to remember that the ribosome reads every three bases or 'codon' in order to assign the right tRNA carrying the amino acid.

In the first artificial mRNA we see two patterns of three letter:

CAC and ACA.

In the second artificial mRNA we are able to identify three different patterns:

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And they repeat, so we end with three different polypeptides: polythreonine, polyglutamine and polyasparagine. This will depend on the initial letter the ribosome starts reading.

The only amino acid that repeats in both artificial mRNAs is Threonine,  and we see its pattern ACA also repeated.

So, we could assign this codon (ACA) to threonine.

We can then assume that the pattern CAC codifies for histidine since we only get this two polypeptides in the first mRNA.

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5 0
3 years ago
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Juli2301 [7.4K]

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Temperate forests: It is second largest biome , which covers 25% of the world's forest area. Its is known for its seasons and leaf-shedding trees. For example the Valdivian and magellanic temperate forests.

Tropical rainforests: It occurs in the areas of tropical climate. There is no dry season. Average precipitation of the year is at least of 60 mm. For example Daintree rainforests, Congo rainforests.

Subtropical rainforests: It has the the features of temperate forests and tropical forests.

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Chaparral: It is a heathland plant community. Found mainly in US state of California and in northern portion of the Baja California peninsula. For example Santa ynez mountains, near Santa Barbara, California.

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Arctic tundra: It is a vast, cold, and treeless area of low, swampy plains in the north around Arctic ocean. There are three regions and associated type of tundra that are Arctic, Antarctic and Alpine.

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