When a person is exposed to a cold environment: Select one: a. the skin becomes flushed secondary to peripheral vasodilation. b. sweat is produced and is warmed when the vessels constrict. c. peripheral vessels constrict and divert blood away from the skin. d. blood vessels dilate and divert blood to the core of the body.

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

Explain 3 specific difference or 3 specific similarities between chimpanzee and human behavior