it is c because i just took the test
Answer:
Bones are organs composed of hard living tissue providing structural support to the body – it's scaffolding. It is a hard matrix of calcium salts deposited around protein fibers. Minerals make bone rigid and proteins (collagen) provide strength and elasticity. ... The outer layer of bone is called Cortical bone.
Answer:
When the lower esophageal sphincter is atrophied, a disease called achalasia occurs, in which there is no relaxation of the esophagus when the food is swallowed, it is difficult for the food to go down to the stomach. Some symptoms are that the food, once swallowed, can not pass and gets stuck.
Regurgitation, chest pain and weight reduction may also occur.
Answer: As a product
Explanation:
It acts as a product, the glucose bonds are broken apart – releasing the chemical energy stored in it. Cellular respiration uses glucose and oxygen, and it makes water and carbon dioxide
True, because atoms bonds together and form molecules in different sizes and shapes.
