DNA codes for proteins, which are the building blocks of organisms. What is the most abundant protein in the human body?

Ineed ! i have no clue how to do this problem.

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

The organs inside the body and how they function together