Answer:
The stomach produces hydrochloric acid.It kills many harmful microorganisms that might have been swallowed along with the food.The enzymes work best in acidic conditions-at low pH
Animal phyla are primarily defined according to B. Patterns of embryologic development and adult body plans.
Answer:
The percentage of carbon dioxide in the air is 0.04%
<span>The part of female reproductive system that is responsible for the nourishment, holding and protection of the embryo or fetus is the uterus, also known as the womb. It also provides support to the bladder, pelvic bones and other organs. </span>