In the experiment, the independent variable is the drug amount. Experiment group is given certain amount of drug, control group is not given the drug. The dependent variable is the body fat. I think you means the control is the living environment including food and water.
Answer:
C. The upper part of the water column represents areas of high sunlight penetration.
Explanation:
I just took the test and checked my answers.
What are the options?
Explanation:
I would go for D or A! :)
Answer:
D
Explanation:
A plant needs to use the energy from the sun to make glucose and other nutrients it needs. Air is needed for glycolysis and photosynthesis to occur. Water is needed by all living things to stay alive.
