Question

Arrange the following in ascending order, with respect to levels of biological organization.

Tissue, organ system, organ, cell, complete individual

Answer 1

The correct order of the levels of biological organization is:

Cell $\to$ Tissue $\to$ Organ $\to$ Organ system $\to$ Complete individual.

For example,

Cardiac muscle cell $\to$ Cardiac muscle tissue $\to$ Heart $\to$ Circulatory system $\to$ Complete individual