Earth does not receive a steady supply of matter from space. therefore, what is cycled over and over through an ecosystem?

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy