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Effectus [21]
3 years ago
14

A medical researcher hypothesizes that a new drug can reduce cholesterol. which of these would most likely be the dependent vari

able in the study involving this medication?
A) the number of participants in the study
B) the ages of the people treated for cholesterol with other medications.
C) the cholesterol level of the participants in the study
D) the number of people treated for high cholesterol with other medications
Biology
1 answer:
Tems11 [23]3 years ago
7 0
<span>C. The cholesterol level of the participants in the study.</span>
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Answer no 8:

The correct option is D) Antelopes with muscular legs are bale to outrun their predators better than antelopes with poor muscle tone. Thus they lived to reproduce.

Explanation:

Genetic variations in a population are the main reason that natural selection tends to occur. Natural selection favours those organisms which have better characteristics.The organisms with better traits are able to reproduce and pass on their characteristics to their offsprings.

Answer No 10:

The correct option is A) Phenotype directly influences the interaction of an organism with its environment.

Explanation:

The interactions between the phenotypic traits and the environment analyze whether a particular organism will be able to survive and pass on its characteristics to its offspring. Hence, the phenotype directly influences the interaction of an organism with its environment.

Answer No 9

The correct option is A) resistance to a virus

Explanation:

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Answer No 11:

The correct option is C) Giraffes with longer necks survived because they were better suited to the environment.

Explanation:

Natural selection tends to favour those organsims which are better suited to live in an environment. Those organisms with better characteristics are able to survive and pass on their traits to their offsprings.

The giraffes with longer necks were better adapted to live in the environment and hence were favoured by natural selection.

Answer No  12:

The correct option is D) selective breeding

Explanation:

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