Smallest unit of all living things.
What are cells?
A characteristic of a living thing.
What is a trait?
Any evidence of an organism that lived in the past.
What is a fossil?
The interactions of living and nonliving things in their environment.
What is an ecosystem?
Long period of time with little or no precipitation.
What is drought?
Cells that work together.
What is tissue?
The largest group into which an organism is classified.
What is a kingdom?
When an organism is no longer alive on Earth.
What is extinct?
An organism's home.
What is a habitat?
This is when harmful substances are added to Earth's water, air, or land.
What is pollution?
A group of tissues that work together.
What is an organ?
Smallest group into which an organism is classified.
What is a species?
An undeveloped animal or plant.
What is an embryo?
One type of organism.
What is a population?
When an ecosystem has too many of at least one kind of living thing.
What is overpopulation?
Protects and supports the cell.
What is the cell wall?
The set of steps in which organisms get food.
What is a food chain?
The living part of an ecosystem.
What is a community?
The burning of coal, gasoline, and other fuels causes.
What is acid rain?
Plant cells have this, but not animal cells.
What is chloroplast and cell wall?
An organism that eats a producer.
What is a consumer?
An organism, such as a plant, makes food?
What is a producer?