3. The ability to keep a stable internal environment is called a. Metabolism
b. Reproduction
c. Homeostasis

c)Homeostasis isthe ability to keep a stable internal environment is called

C

Explanation:

Homeostasis is the maintenance of a stable internal environment. Homeostasis is a term coined to describe the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues, organs, and organ systems.

this would be a math

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.