In an experiment to determine the effects of radiation on the germination of seeds, a factor that has to be controlled is a. the amount of radiation. b. the types of radiation. c. the germination rate of seeds. d. the amount of water added to the seeds.

Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Mutations associated with albinism affect proteins involved in synthesis