By measuring mass and volume
Answer:
Experiment
Explanation:
An experiment is conducted to test the activity of the caffeine in the blood stream of the athlete
According to a source, the answer to this question is by compacting the soil, decreasing aeration and infiltration. With this process in mind, the plant would be able to survive.
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Cardiac output, peripheral resistance, hormonal changes coming from glands, blood volume & blood viscosity
If the conclusions do not support their hypothesis they would start the experiment all over again and see what they did wrong. <span />