10. Why are algae NOT considered plants? A. They are not green.
B. They cannot make their own energy.
C. They live in water.
D. They do not have stems, roots, and leaves.

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

What pattern of migration do whales follow?

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success