Page 85 - Science Course 1 (Book 1)

Cells: Unicellular and Multicellular Mo3-L4a: What are Unicellular and
Multicellular Organisms?
Lesson 4

Tissue
a group of similar types of cells that work together to
In this topic, you will learn the following carry out specific tasks
lessons:

Mo.3 - L4a: What are Unicellular and Multicellular
Organisms?

What are Unicellular and Muscle Tissue Epithelial Tissue
Mo3-L4a Multicellular Organisms?

KEY CONCEPTS:
1. How do unicellular and multicellular differ?
2. How does cell differentiation lead to the
organization within a multicellular organism?

Vocabulary A-Z Nervous Tissue Connective Tissue

Let us learn some vocabulary

Organ
Cell Differentiation a group of different tissues working together to
perform a particular job.
the process by which cells become different types of
cells.

Stem Cell
an unspecialized cell that is able to develop into Organ System
many different cell types.
a group of organs that work together and perform a
specific task.

78