its for MECHANICAL ADVANTAGE

it also has to do with levers and mechanical advantage.

i already have:

M-muscles are the load
E-effort is the force applied
C-cardiac muscles work as the load
H-humans use tools such as a shovel to help them
A-anatomy helps people understand how levers work
N-no type of lever end up making work harder
I-increases the amount of work done
C-
A-
L-load is the weight on the bar

A-
D-
V-very useful to the body
A-
N-
T-third class lever is the most common in the body
A-
G-
E-every lever is used to make work easier

As you can see i need help with C, A, D, A, N, A, and G
please help! thanks! >_<