Answer:
D. the nucleus contains the protons and neutrons which takes up most of the mass of the atom
Explanation:
Answer:
<h3>Yes</h3>
She always prepared food.
Answer: Fighting infection
Explanation:
Lymphatic system is a type of circulatory system in all vertebrates. It is a network of tissues ,blood vessels, and organs. The primary function of the lymphatic system is to control the fluid balance by collecting the fluid present in excess from the tissues and depositing them in the stream of blood. The secondary function of the lymph system is the production of lymphocytes (white blood cells) which fights against the disease causing pathogens. Hence, fights against infection.
A population decrease in primary producers would affect the ecosystem negatively because everyone who ate the primary consumers would have a lack of food.
A. Organisms with less desirable traits do not reproduce
is the answer
