Levels of Biological Organization

What is the smallest unit of life that can perform all life processes?

• Cell

• Atom

• Molecule

• Tissue

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Match the following levels of biological organization with their correct description:

• A group of ecosystems

• Organism

• A single living thing

• Organ System

• The entire planet and all living things on it

• Biosphere

• A group of organs working together

• Biome

• A group of organs

• Organ

An organ system is made up of a single cell.

• True

• False

Tags

NGSS.MS-LS1-3

Refer to the diagram showing the progression from organelle to organism. What comes directly after 'Tissue' in the sequence?

• Cell

• Organ

• Organ system

• Organism

Tags

NGSS.MS-LS1-3

Which of the following is NOT an example of an organ in animals?

• Heart

• Leaf

• Liver

• Kidney

Fill in the blank: In plants, the _______ serves as an organ for photosynthesis.

• leaf

• root

• stem

• flower

Tags

NGSS.MS-LS1-6

Which organ system is responsible for pumping blood throughout the body?

• Digestive system

• Circulatory system

• Respiratory system

• Nervous system

The shoot system in plants like stem supports photosynthesis and reproduction.

• True

• False

Tags

NGSS.MS-LS1-6

Which level of organization includes all living organisms and their non-living environment in a particular area?

• Individual

• Population

• Community

• Ecosystem

Fill in the blank: A _______ is a group of populations of different species living in the same area and interacting with one another.

• community

• ecosystem

• habitat

• population