Which structure is represented by the x? the picture represents the respiratory system. o the pharynx the larynx o the trachea the bronchus

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

A(n) is a molecule influences the way that a molecule reacts.