If orangutans become extinct, many other species would likely die out, too
Answer:
Lobe-finned fish are thought to be the close relatives to tetrapods because of the fact that the fins are very flexible and potentially useful for supporting the body on land, as in lungfish and tetrapods.
Explanation:
Heterotrophs depend on autotrophs for food (energy). Autotrophs don't neccessarily depend on heterotrophs. In some cases heterotrophs may spread their seeds, such as a bee spreading pollen, so in that case they would.
Organisms were grouped by habitat, not structrual similarity
hope it helps
