The extinct animal is most similar to the bottom left due to the spinal similarities. The spine does not demonstrate a sigmoidal curve like the bottom right does. Answer would be bottom left.
B.
Key word: slide
Think of sliding down a WATER slide.
D looks like the oldest one because there is barley anything there. if not then I would do b
Athletics would be the easiest choice here
Sports are an active that takes up a lot of different organ systems. When running I use my muscular system and cardiovascular system the most. The cardiovascular system directly controls running because it helps prevent me from getting tired and worn out faster.
Hope this helps :)
Answer:
B. To make sure that the two new cells have slightly different genetic codes.
Explanation: