The chart shows parts of the body at different levels of organization.
which picture can best be used to fill in box s?

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity