Shannon and her students spend each spring and summer in the local river valley studying the vocalizations of squirrels. If they only observe and record occurrences of the behavior and the circumstances in which it occurs, they are engaging in the naturalistic observation method of research, which is a type of research

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this

where's the

many citizens are in danger of contracting a food-borne illness.

more people are living with chronic illnesses.

pathogens are becoming stronger and harder to defeat.

edge nuity

answer; john b watson,(observable behavior);