A constant factor could be the dose of the drugs and the species of the rats used.
<h3>What is a constant factor?</h3>
In an experiment, a constant factor is one that is not allowed to change al through the experiment. This one must be held as the same and not allowed to vary. A constant factor could be the dose of the drugs and the species of the rats used.
The factor that would be different for the experimental group and the control group the administration of the new drug.
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C. Meters are the SI unit for length so would be most meaningful.
Hello!! The answer should be C because as the higher you go in the food chain, the energy will decrease. Plants and the producers always have the most energy, whereas the tertiary consumers always have the least amount of energy. I hope I helped and gave you the right answer you are looking for. Have a great evening!!
Answer:
B. It increases the frequency of alleles that improve a species' survival in a particular environment.
Explanation:
Natural selection encourages the survival and reproduction of individuals who are especially well-adapted to their environment. This means that natural selection causes increases in the frequency of alleles that improve the species' survival in a particular environment. (got it right on study island)
