There are sometimes similarities in the embryonic stages of organisms that do not exist in the adult stages.
Some examples of important nonliving things in an ecosystem are sunlight, temperature, water, air, wind, rocks, and soil. Living things grow, change, produce waste, reproduce, and die.
D: Human feet come in a wide range of sizes. There isn't a lot of gray area or space for ranges of things in medel's laws, but they still work in a lot of cases.
<span>The smallest unit that can evolve is a _____. cell</span>
