Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Answer: Compact bone is dense and composed of osteons, while spongy bone is less dense and made up of trabeculae. Blood vessels and nerves enter the bone through the nutrient foramina to nourish and innervate bones.
Explanation: Sup. Hope dis helps u
Eukaryotic cells can assemble into multi-cellular organisms. A.
Answer:
Explanation:
abduction/adduction
flexion/extension
internal lexternal rotation.
