Organization+of+Life

= = =Chapter 1, Section 1 = =﻿ By: Olivia Ligus, Eric Kaufmann, Grace Meng, Nick Fell =

Cells arrange themselves into tissues, tissues into organs, organ systems, organisms, populations, communities, and ecosystems. They aslo talk about diffrent types of cells and how they work. Basically the chapter is about every one of the things that cells are a part of.

Words and Definitons! Tissue - A group of cells that work together to perform a specific job in the body.

Organ - When two or more tissues work together to perform a specific job.

Organ System - Organs work together in groups to perform particular jobs.

Organism - Anything that can live on its own.

Unicellular - One single cell living on its own.

Multicellular - A cell that can only exist as a group of cells and most of your cells can survive only if they are a part of your body.

Population - ﻿A group of organisms that are of the sam kind and that live in the same area.

Community - Two or more different populations living in the same area.

Ecosystem - The community and all of the non-living things that affect it.

This is the human digestive system. This is the human heart musscle tissue.

This is the human heart. This is the human heart musscle cell.

Cells are what you are made of