Today, biologists classify sponges as animals rather than plants. what evidence supports today's classification? a. sponges have asymmetry. b. sponges do not have a backbone. c. sponges cannot make their own food. d. sponges do not have tissues or organs.

Which of the following would be an important part of a multi-step plan to restore the stability of the red-cockaded woodpecker's ecosystem?

What type of competition exsist between two species. turtles and fish

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an