Question

a student is making a chart of different levels of organization in the body of an organism.
most simple\t1
↓\t2
↓\t3
↓\t4
most complex\t5
which of the following belongs in level 2?
a. cardiac muscle tissue

Explanation:

The levels of biological organization from simplest to most complex are: 1 - cells, 2 - tissues, 3 - organs, 4 - organ systems, 5 - organism. Cardiac muscle tissue is a type of tissue, so it fits Level 2 (tissues level).

Answer:

A. cardiac muscle tissue