This document defines key biological terms including cells, tissues, organs, organ systems, and organisms. Cells are the basic structural and functional units that make up all living things. Tissues are groups of similar cells that work together, while organs are made of multiple tissues to perform specific functions. Organ systems consist of groups of organs that collaborate to carry out tasks, and an organism is a living thing capable of processes like response, reproduction, and regulation.

1. Creamsicle Corn Snake Aubree Welch Pd. 4 Creamsicle Corn Snake