Bacteria! Bacteria! Bacteria! :)
Answer:
Hormones are molecules produced by the endocrine system that send messages to various parts of the body. They help regulate your body's processes, like hunger, blood pressure, and sexual desire. While hormones are essential to reproduction, they are fundamental to all the systems of your body.
Answer:
a human and appropriate body part is head, neck, back, hips
Explanation:
I think the answer would be c. because for birds with longer beaks, it was easier to eat seeds off a cactus (for example), and for birds with shorter seeds, it was easier to eat seeds off the ground.
Pre-modern-high birth rate and death rate
Mature industrial-low birth rates, death rates are constant
Industrialization-high birth rate and low death rate