The importance is that the second one has more surface area because it has the outside are and the inside area too
Answer:they monitor it through a modern system machine, it's important because we need to know the population we have.
Explanation: which means are we increasing it reducing in our population
Answer:
but no the answer is spine which can also be called vertebral column so is B
Answer:Fossils are all throughout different rock layers. The oldest fossils are on top and the newest are at the bottom.
Explanation: there is a rich fossil record that shows the evolutionary transitions from horse ancestors to modern horses that document intermediate forms and a gradual adaptation o changing ecosystems.