Heart is to the system as lungs are to the system a) circulatory; respiatory b) endocrine; muscular c) respiatory; endocrine d) nervous; endocrine

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Which statement best describes the role of religion and culture in ancient medicine?