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andrezito [222]
4 years ago
15

The body size of the individuals in a population of crabs starts decreasing. A geneticist believes that interbreeding with a sma

ller species may have happened. A marine biologist believes that the crabs may be undernourished. Why are both of these options valid scientific hypotheses?
Biology
1 answer:
il63 [147K]4 years ago
3 0
The reason that these are both valid hypotheses is:
Scientists with different educational backgrounds can come to different interpretations of the same data.

The first step of the scientific method is to make an observation and then the second is to identify a problem. The third step, the formation of a hypothesis, is where scientists tend to differ from one another. A hypothesis serves to explain the given observation and answer the problem. The explanation offered by an individual scientists is based on the scientist's background and understanding of a subject.
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Which statements describe telomeres and the actions of telomerase?
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Answer:

Option (d).

Explanation:

Telomere may be defined as the repetitive DNA sequence present at the ends of the chromosomes. Telomeres consists of the nucleotide sequence rich in G and consists of vertebrate sequence  AGGGTT.

The mutation in telomerase enzyme can cause the excessive replication of the telomeres. These leads to the excessive cellular proliferation and makes the cell immortal. This extensive growth of telomere is one of the maine reason of the cancer development.

Thus, the correct answer is option (d).

8 0
4 years ago
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7 0
3 years ago
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Arturiano [62]
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3 0
3 years ago
Allergy to pollen is classified as ________.
sp2606 [1]

Answer:

immediate hypersensitivity is a correct answer.

Explanation:

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Immediate hypersensitivity is a type of allergic reaction.

It occurs through the exposure to allergen by inhalation, through direct contact or by ingestion.

Thus Allergy to pollen is classified as immediate hypersensitivity and it  is IgE mediated allergic reaction.

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4 years ago
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