Please help me i’m clueless and need assistance this is the question i need help with.

What would you expect population of sand dollars to be
if they sampled 8 m' of the reef? 12 m??

What are genotypes? what are phenotypes?

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy