A. alleles are variations of a gene trait
Answer:
Explanation:
The two lower, larger chambers of the heart are called _ventricles._
Answer:
An experimental group, also known as a treatment group, receives the treatment whose effect researchers wish to study, whereas a control group does not. They should be identical in all other ways.
They are better because they are for comparative use for instance hair color to finger nails they both grow but onto separate parts of the body.
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Answer: A
Explanation:
Carrying Capacity because it is showing how many ferns the rainforest can support.