Answer: True because In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
 
        
             
        
        
        
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. 
 
        
             
        
        
        
Well if the temperature goes above 42°c the enzymes become denatured so the body cannot function and you will die. Their optimum temperature is 37°c which is your normal body's temperature. If the body temperature. is too low the enzymes will not work effectively.