15. what term describes the way an organism responds to stimuli?
training
behavior
temperament
stimulus

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

When analyzing tree rings, what do scientists assume a thin ring indicates?

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?