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Novay_Z [31]
3 years ago
12

Why doesn't the North Pole have frost action?

Biology
1 answer:
sergij07 [2.7K]3 years ago
5 0
There's no land at the North Pole Instead it's all ice that's floating on top of the Arctic Ocean. ... Multi-year ice is thicker and has survived at least one melt season, whereas first-year ice is much thinner. Arctic sea ice usually reaches its minimum around mid-September each year.
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What is the most important heterotroph and why
Elina [12.6K]
Heterotrophs help in maintaining a balance in the ecosystem by providing organic compounds for autotrophs. Certain heterotrophs such as fungi help in reducing decomposed plant and animal material. This recycling activity is important in reducing waste in the environment.
I think *
7 0
3 years ago
Imagine you are a student trying to decode the genetic code. An artificial mRNA molecule consisting of poly-CA (5ʹ... CACACACACA
Semmy [17]

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:

CAA

AAC

ACA

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.

Lastly with the information provided we cannot determine the codons AAC and CAA for glutamine or asparagine. We would need further experiments.

5 0
3 years ago
The United States Department of Agriculture has reported a 34% loss in honeybees each year from 2007 to 2010. What are possible
Pachacha [2.7K]

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4 0
3 years ago
Which statement best describes the reaction for cellular respiration?
Mama L [17]
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5 0
3 years ago
Read 2 more answers
What is the mass of oxygen in 350 g of sulfuric acid H2 S04
jek_recluse [69]

Answer:

228,585 gram

Explanation:

M h2so4 = 2 + 32 + 16*4 = 98 g/mole

C% o2 in h2so4 = (64 / 98) * 100 = 65,31%

m o2 = 350 * 65,31% = 228,585 gram

Done :))

5 0
3 years ago
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