Once inside muscle cells, the oxygen can either bind to myoglobin (a protein like hemoglobin that enables muscle cells to store a small amount of oxygen) or enter the mitochondria to be used in the elec- tron transport chain to accept the H+ ions produced by the oxidation of carbohydrate and fat.
Soz if its not very clear, but if u get it correct, can u give me brainly?
Answer:
ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
Hind limbs are sturdier, longer and stronger.
The hind limbs are more firmly attached to the spine (via pelvis) than are the forelimbs
Answer:
cartilage is a flexbile tissue made of cells called chond
Explanation: