Where do reactants of photosynthesis come from? a. glucose b. we exhale them c. we inhale them from the atmosphere d. plants give them off and release them into the atmosphere e. water f. oxygen PLEASE HELP!

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

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

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.