A. Heart contraction B. Hormone production
C. Information transfer
D. Structural support

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

Which identifies the main purpose of biological taxonomy?