Instructions: Please Define the Following Key Terms

question 56

Short Answer

Instructions: Please define the following key terms.Show Who? What? Where? When? Why Important?
-Struggle of the Orders

---

Definitions:

Nervous System

A complex network of nerve cells and fibers that transmits nerve impulses between parts of the body, coordinating and controlling bodily functions.

Ectoderm

The outermost layer of cells in the developing embryo of an animal, giving rise to the skin and nervous system.

Germ Layer

Layers of cells in the early embryo that develop into all the organs and tissues of the body, including the ectoderm, mesoderm, and endoderm.

Bone And Cartilage

Connective tissues in animals; bones provide structural support and protection, while cartilage reduces friction and acts as a cushion between joints.