Levels of Organization

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• a.  Organism, cell, tissue, organ, organ system

• a.  Organ system, organ, tissue, cell, organism

• a.  Cell, tissue, organ, organ system, organism

• a.  Cell, organ, tissue, organ, organism, organ system

A forest full of many kinds of trees and grasses is an example of a

• group

• organism

• population

• community

A group of similar cells that come together to perform a specific function is a/an

• organ

• organism

• organ system

• tissue

Tags

NGSS.MS-LS1-3

The smallest level of organization of life in an organism

• tissue

• cell

• organ

• organ system

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Sequence the levels of ecological organization from smallest (top) to largest (bottom).

g

h

i

j

f

e

d

c

b

a

Organ

Tissue

Organ System

Population

Community

Biosphere

Biome

Ecosystem

Cell

Organism

What is the correct order of levels of organization from smallest to largest?

• Cell, Tissue, Organ, Organ System, Organism

• Tissue, Cell, Organ, Organism, Organ System

• Organ, Organ System, Cell, Tissue, Organism

• Cell, Organ, Tissue, Organ System, Organism

Answer explanation

The correct order of levels of organization from smallest to largest is Cell, Tissue, Organ, Organ System, Organism.

Match the levels of ecological organization with their examples.

• Ecosystem

• Swamp and Forests

• Biosphere

• A group of cypress trees.

• Population

• Cypress trees, alligators, mosquitoes, racoons, bayou, dirt, sunlight

• Biome

• The whole Earth

• Community

• Cypress trees, alligators, mosquitoes, racoons

Tags

NGSS.MS-LS2-3

Identify the correct level or organization: the ocean is a ​ ​ ​ ​ (a)   ​ ​

• biosphere

• biome

• species

• population

• community

• ecosystem

Organs that work together are part of a(n) ________________________.

• cells

• tissue

• organ system

Tags

NGSS.MS-LS1-3

What is the difference between a cell and a tissue?

• cell is basic unit of life; tissue is group of cells that work as one

• cell is group of tissues; tissue is basic unit of life

• cell is basic unit of life; tissue is groups of different cells

• cell is group of organs; tissue is group of different cells