Speciation, the evolutionary process by which new species are formed, is clearly responsible for the ultimate generation of species diversity over geologic time.
The answer is D. The ribs PROTECT the lungs and the heart. They allow you to move and they store minerals such as calcium. However it is the brain and the blood vessels that regulate the body temperature not the skeletal system.
<span>your answer ..is sea lilies </span>
I beleve the answer is rotting carcass.
The remaining answer choices are all inorganic.
Hope this helps.
Answer:
Light energy (sunlight)
By autotrophs
As they make food from it