Nails,barrier, and waste products
Answer:
EXERCISE
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable outcome.
In this case, an experiment is carried out to test the hypothesis that "exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time". The experiment contained two groups (one group sits quietly before squeezing a clothespin as many times as possible and the other does 25 JUMPING JACKS before squeezing a clothespin as many times as possible).
The independent variable is the EXERCISE (jumping jacks) that was changed for each group in the experiment.
The powerhouse is the mitochondria
The question is incomplete as the group of choices are not provided. However, a group of choices is given below:
A. Do the young hemlocks have a disease?
B. Are deer eating most of the young hemlocks
C. Did a lack of rain the hemlocks to stop producing?
D. Why were there so many deer in the forest?
Answer:
The correct answer is - option B Are deer eating most of the young hemlocks
.
Explanation:
By the observation made by the researcher about decreased young hemlocks and increased deer population in the last 5 year time period and findings of the deers that they like to eat young hemlocks, she can make observations and form the question.
On the following finding, she was able to make a question that the population of deer increased has led to the young Hemlock's population that the deer eat young Hemlocks.
Thus, the correct answer is - option B Are deer eating most of the young hemlocks
.