How does protein analysis determine past organisms

Which best describes what you will do in the reaching your academic potential course?

What are the methods of heat transfer? check all that apply. absorption conduction convection radiation reflection

Why does competiton happen? a: different organisms have different needsb: there are limited resources in an ecosystemc: there are no predators in an ecosystemd: organisms do not need the same resources (i think it's b but i'm not sure)