Answer:
Humans get the energy and matter they need to survive from the food they eat. The foods humans eat contain carbohydrates, vitamins, and protein. All of those components are broken down by the human body with the aid of digestion.
Answer:
Condyle
Explanation:
The condyle is one of the outgrowth or projections present at the surface of the bone. The condyle is large and round in shape. It has a smooth articular surface and serves in joints formation. The condyle is present at the end of one bone and joins it with other bones.
Example: occipital condyles of occipital bone serve in joint formation with the first vertebra of the vertebral column.
The location that should have lowest oxygen concentration would be the tissue because it is the furthermost location.
Other location with lowest oxygen concentration should be in the right part of the heart. It is when all unoxygenated blood pooled before going to the lungs. But the left part of the heart will have highest oxygenated blood, so it's ambiguous.
High oxygen concentration should be found in the environment, lungs, and the blood.
I think the correct answer from the choices listed above is option B. Keratin is the protein in mammals which shows only a primary and secondary structure. Keratin is a fibrous protein forming the structural constituent of hair, feathers, hoofs, claws and many others.
