Question

place the following levels of biological organization in the proper order, from smallest to largest.

1. molecule
2. tissue
3. organ system
4. organ
5. cell

a 1, 5, 4, 3, 2
b 1, 2, 5, 4, 3
c 5, 1, 2, 4, 3
d 1, 5, 2, 4, 3

Explanation:

Biological organization levels start with molecules. Molecules form cells. Cells form tissues. Tissues form organs. Organs form organ systems. So the order is Molecule (1), Cell (5), Tissue (2), Organ (4), Organ System (3).

Answer:

D. 1, 5, 2, 4, 3