Answer:
Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ.
Explanation:
The defination to energy is B) the ability to create a new substance.
Isnt it not desirable? you dont want friction to act when you push a box
What happens to the population density and competition if the birth rate decreases?
The birth rate would increase is the population density competition increased.
Hope I helped.
2 lowercase letters means that the recessive gene is visible, so it should be red feathers