Atom, molecule, cell, tissue, organ, and organ system
The best answer should be
D) Food component that can be stored in the body for future energy needs
Answer:
tube 3
Explanation:
because it contains pure water
The correct answer is (a.) Its spindle-shaped cells allow it to do smooth muscles. The structure of the cardiac muscles which is spindle-shaped is very important for the heart to withstand the stretching of the muscles during the contractions. Also for its smooth surface which is very important to prevent any possible blood clot during circulation.
A D B A C D D A C B B A D