Julio eats a taco for dinner. what represents a physical change in the taco?

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.

What gpa will you get if you make all a's and 1 b?

The different layers of gases that extend form the surface of the earth into space