Levels of Organization

Question	Answer
The smallest structural and functional unit of an organism. Examples: nerve cells and brain cells	Cells
is made up of similar cells that combine to perform a function. group of similar cells performing a job or function Examples: nerve tissue and brain tissue	Tissues
Similar tissues combine to make ? Tissues organized into brain, heart, lungs, stomach, etc. Examples: brain, skin, stomach	Organ
The result of several organs working together to perform a function. Examples: digestive system, nervous system and cardiovascular system	Organ Systems
Organ systems work together to make an ? Individual living thing (person, dog, plant, etc.) Example: human	Organism
group of one kind of organism (species) in an area that can interbreed & make fertile offspring --- (cardinals at the bird feeder)	Population
Several populations of organisms in an area --- (animals in the zoo)	Community
All the living (biotic) and nonliving (abiotic) parts of an environment --- (Tropical rain forest, grassland, etc.)	Ecosystem
Large areas of the world with similar climates and organisms	Biome
All the living and nonliving things on Earth	Biosphere

Resource summary

	Created by Asia Martin about 6 years ago