Question

multicellular organisms, cells are organized into tissues, tissues into organs, organs into organ systems, and systems into organisms. cells that work together to accomplish a specific function make up ues. several types of tissue are listed. select the two examples that would not be classified as tissue.
a brain
b epithelial
c muscle
d nervous
e red blood cell

Explanation:

• Brain (A): It is an organ composed of multiple tissues (like nervous tissue).
• Red blood cell (E): It is a single cell, not a collection of cells working together as a tissue.
• Epithelial (B), muscle (C), and nervous (D) are types of tissues.

Answer:

A. brain, E. red blood cell