Pressure, temperature, and idk the last one:/
Sigmoiditis is the answer
The answer is; the skeletal system and the nervous system
The skeletal system (muscle and bone) give you rigidity and enable your legs to support your weight. The muscles also act on the bone as a fulcrum allowing it possible for them to contract and make motion possible.
The nervous system is important in the coordination of movement. The brain is the center for locomotor action. This ensures you are able to place one foot in front of the other in sequence and moving your arm in concert.
The ability of an organism to make a copy of itself is called Reproduction
The answer is primary structure. The protein's primary structure pertains to the amino acids' linear sequence in the chain. Usually, the protein's structure is combined together with a covalent bond that is produced while the process of biosynthesis is present.