Which of the following is a question that can be answered by science
a. what is beauty
b. is it ethical to do experiments on animals?
c. how does dna influence a person's health?
d. do people watch too much television?

Which technically is nasa developing that will astronauts reach mars

Which event would lead to primary succession of a forest?

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.