Refer to the illustration above. how much energy is available to the organisms in level c? a. all of the energy in level a plus the energy in level b b. all of the energy in level a minus the energy in level b c. 10 percent of the energy in level b d. 90 percent of the energy in level b

u should slap your self for that answer the real answer is C.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).