Heat is heat enthusiasts is it
Equation for photosynthesis in symbol and word.
Answer:
I. evolved from ancestors that walked
Explanation:
Whales and pythons have vestigial structures, which are structures (hind legs) which are no longer useful to them since they have evolved. The ancestors of the whale and python did use the hind legs but over generations the whale and snake have adapted to new environments and they no longer need them.
In a pond oxygen is gathered in two ways. One from the air or from the aquatic plants that live in the pond. Oxygen gets dissolved from these when mixed with air and water movement