<u>Which types of proteins help defend the body against foreign agents like bacteria?</u>
<u>antibodies</u><u> </u>
<u>it's</u><u> </u><u>simple</u><u>.</u><u>.</u><u>.</u>
Answer:
Organisms respond to a signal called a stimulus.
Explanation:
Genetics, double helix, cells
Answer: neutral
Explanation: The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.