Answer:
Protein digestion begins in the mouth
Fat digestion begins in the stomach
Because depending on how much the food has broken down they can see when the person dies
Gills enhance diffusion between aquatic creatures' blood and the surrounding water. They have a large surface area to increase the area available for gas exchange and a lot of capillaries to increase the bloodflow through the gills.
I think the answer to this is C. The reason i chose this answer is because you can investigate the environment, pollution in the environment, you can investigate water pollution and how it affects the life around it, and you can investigate global warming or climate changes.
Answer:
The rectus abdominis muscle is the muscle that is located at the front of the abdomen; it is most often referred to as the ''abs.'' The action of this muscle pulls the rib cage and the pelvic bone towards the middle of the abdomen, just like the movement when a person performs a sit-up or crunch.
Explanation:
