Are echinoderms autotrophic? how do you know?.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center

This is due today and i dont know how to do this. i will give brainiest! research the critical new developments in telescopes, and telescopic lenses. write a 200 word paper on the new developments, describing how these effects the telescopes, and in what environments these work best.