When the body is attacked by a foreign substance, the defenses are the first to react.

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air

Which law represents a balanced chemical equation?