He observed 15 different finch species that originated as one ancestral bird. all differing in body shape, beak size, and mating habbits
<span>A. Oil is a non-renewable resource
Sources that are only limited are called non-renewable sources. An example of this is oil where it can only be found from the fossils of the decayed organisms. There are no other ways to produce oil and it takes millions of years for a decayed organism to produce fossil fuel.</span>
The correct answer is option A
The major advantage of DDT at that time when it was used as a pesticide is that the DDT was very effective as a pesticide and it killed almost all the pests on which it was sprayed. It killed all the insect and pests that was present in the united states at that time. It later became harmful and entered into the food web.
Answer: (C) The polysaccharides in the plant are breaking down.
Explanation:
Starch is the most common polysaccharide in human life. Starch can be broken down by amylase enzyme in abdomens of most of animals. Glycogen is the storage molecule in animals and it's analogous to starch in plants.