Organs that work together to take air into the body and push it back out make up

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

Find the number if 3.7% of it is 37% of 37.

Whats begin with t, ends with t has t in it