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Vikentia [17]
3 years ago
15

Which model shows more diversity? A. Food chain B. Food web

Biology
2 answers:
GuDViN [60]3 years ago
6 0
A. Food web
A Food web consists on numerous food chains.
Rudiy273 years ago
5 0

Answer: A food web.

Explanation:

A food web has more diversity because a food chain only shows what each animal eats. A food web,however, shows everything you need to know and more.

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Which hormone is produced mainly in the stomach and regulates secretions of gastric juice?
azamat
C. Pepsin is the hormone that is produced mainly in the stomach and regulates secretions of gastric juice.
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A geneticist isolates a gene for a specific trait under study She also isolates the corresponding mRNA Upon comparison, the mRNA
olga nikolaevna [1]

Answer:

C) no, the final mRNA contains only exons, the introns were removed

Explanation:

Exons are the coding areas while the introns are non-coding areas. Both of these are the sequences of nucleotide within a gene.

RNA splicing is a process which usually occurs as the RNA matures, causing the removal of introns ( non coding areas of the RNA ) i-e they will not be expressed in the final messenger RNA, while exons continue to form covalent bonds with one another to form a  mature mRNA.

So in the given scenario, Upon comparison, the mRNA is found to contain 1,000 fewer bases than the DNA sequence because the introns were removed by RNA splicing.

Hence option C) no, the final mRNA contains only exons, the introns were removed is correct.

5 0
3 years ago
On average, those with the short form of the ____ transporter gene and a history of stressful experiences reported more than ave
astraxan [27]

Answer:

serotonin

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Here is the complete question:. on average, those with the short form of the ________ transporter gene and a history of stressful experiences reported more than average symptoms of depression.

Serotonin is sometimes called the happy chemical, because it contributes to wellbeing and happiness. The scientific name for serotonin is 5-hydroxytryptamine, or 5-HT.

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