Answer:
Robert Hooke discovered cells
Answer:
D. The mammoth became extinct because mammoth physiology changed with the climate.
Explanation:
"ecology of the area developed into extensive forests of birch and conifers" and "not favorable for the mammoth and was difficult to digest." Infers that the mammoth became extinct due to its digestive system rejecting the food that the area provided. It's digestive system required different foods, thus starving them into extinction.
D. starch is broken down by enzymes :)
Replication is important because it proves that you are correct, it’s as if their checking their work. If you don’t get the same results, that most likely means something was different.