A hypothesis is something u assume before the research has been made and a theory is a explanation already supported by evidence/data.
In surgery yes. it would hurt without it and nobody would get surgery and surgeons would have no job. <span />
The answer is A.
the researchers would not be able to compare the samples and cut the DNA when samples from the waterway are not collected.
Mendel studied a total of seven traits of garden peas. His experiments were successful because the pairs of factors for the traits he studied were on seed shape, flower color, seed coat tint, pod shape, unripe pod color, flower location, and plant height
