Identify and draw two different food chains from the food web: one food chain that ends with a
second-level consumer and one that ends with a
third-level consumer.

Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.

The type of fossil where the name literally means "turning to stone".

Atype of organism that no longer exist on earth is said to be