The answer is D. Because planting nonnative species is bad for the area because the plants that normally grow there have to compete with that new species then.
Glycoprotein Cell Receptors, but you can probably just put proteins
I am mostly sure the answer is B. Good luck, and sorry if it's wrong! :(
Answer:
A. They were part of the control group
Explanation:
In a scientific experiment, the CONTROL GROUP as opposed to the experimental group is the group that does not receive the experimental treatment. This acts as a standard for comparison.
In this question, the EXPERIMENTAL VACCINE is the experimental treatment or independent variable that was added. The five animal test subjects that was injected with this vaccine are called the EXPERIMENTAL GROUP while the other five test subjects that were rather injected with a PLACEBO are called CONTROL GROUPS.
