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Molodets [167]
3 years ago
14

Which environmental change Played a key role in making human survival easier and bringing about the Neolithic age?

Biology
1 answer:
vagabundo [1.1K]3 years ago
3 0

Answer:

End of the IceAge

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Suppose you seal a house plant in a transparent glass container. What would lead the plant to die
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lack of oxygen

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Just like us humans, plants also need oxygen to live

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Comets and meteoroids are small solar system bodies that orbit the Sun. There is one distinctive feature of a comet that sets it
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<span>B) visible coma - fuzzy outline and tail  Is the best answer</span>
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_______ is a typical benefit of a job in veterinary medicine. The first veterinary college was founded in _______, France, in th
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5 0
3 years ago
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotry
Maksim231197 [3]

Answer:

The possible sequence of the decapeptide is Met-Val-Lys-Tyr-Thr-Trp-Ala-Arg-Pro-Phe.

Explanation:

The cyanogen bromide cleaves the carboxyl end of Met (methionine and non-peptide). Trypsin cleaves on the C-terminal of Arg and Lys, however, not on the N-terminal of Pro, which signifies that Lys is the last amino acid in T2. Hence, Met-Val-Lys----. The middle part of the sequence can be predicted from the digestion done by chymotrypsin.

The chymotrypsin cleaves on the C terminal of Phe, Trp, Tyr, however, not on the N side of Pro. CT3 exhibit Lys, Met, Tyr, Val, as Met-Val and Tyr are the initial three amino acids, therefore, Tyr must be the fourth one. Now the sequence will be Met-Val-Lys-Tyr...

CT1 possesses Ala, Arg, Phe, Pro, as chymotrypsin cleaves the C side of the Phe, thus, the last amino acid should be Phe. Also, CT1 has Ala as the first amino acid. Also, trypsin does not cleave on the N-end of Pro. Thus, the sequence of CT1 strands will be Ala-Arg-Pro-Phe.  

In CT2, chymotrypsin cleaves on the C-side of trp. Thus, the sequence of CT2 strands as Thr-Trp is found in the middle. Thus, the whole sequence of the decapeptide strand will be:  

Met-Val-Lys-Tyr-Thr-Trp-Ala-Arg-Pro-Phe.  

3 0
3 years ago
If you stir salt into boiling water, you produce a
jeka57 [31]
The choices can be found elsewhere and as follows:

<span>a) mixture called a suspension
b) mixture called a solution
c) solution and suspension
d) mixture only.
</span>
I believe the answer is option B. If you stir salt into boiling water, you produce a mixture called a solution. Hope this answers the question. Have a nice day.
6 0
3 years ago
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