Answer:
Phagocytes
Explanation:
Its an immune cell that kills of infestations in your body before they can grow and become a threat to you and your body. They also remove dead cells.
The answer would be Prevent yourself from knowing what was in the pill bottles, and distributed the bottles randomly to the subjects
When researcher know which group got the treatment and which group got placebo, they might be biased. It will be better if the researcher is "blinded" and ask third party to help labeling the drug. The drug should be distributed randomly to makes the subject in control and treatment group as similar as possible.
All cells are surrounded by the he plasma membrane! The membrane is composed of a philosopher bilayer
Answer:
Actin filaments return to their original positions (does not occur in muscle contraction, according to the sliding filament model).
Explanation:
D is probably right cos you are comparing data
