Cells
This is the smallest unit of life.
What is a cell?
A group of similar cells working together.
What is tissue?
Organs are made of these.
What are tissues?
A group of the same species living in one area.
What is a population?
Put these in order: organ, cell, tissue.
What is cell → tissue → organ?
This cell part controls the cell.
What is the nucleus?
Muscle tissue helps the body do this.
What is movement?
This organ pumps blood through the body.
What is the heart?
All the different living things in an area together.
What is a community?
The environmental level above an organism.
What is a population?
Plant cells have this structure for support.
What is the cell wall?
This tissue sends messages through the body.
What is nervous tissue?
he brain belongs to this organ system.
What is the nervous system?
Living and nonliving things interacting in an area.
What is an ecosystem?
The largest level of organization on Earth.
What is the biosphere?
Red blood cells carry this gas through the body.
What is oxygen?
Cardiac muscle tissue is found in this organ.
What is the heart?
Leaves are organs in this type of organism.
What is a plant?
A pond with fish, algae, water, rocks, and sunlight is an example of this.
What is an ecosystem?
A forest, desert, and tundra are examples of this level.
What is a Biome?
Plant and animal cells are examples of this type of cell.
What are eukaryotic cells?
This tissue covers and protects the outside of the body.
What is epithelial tissue?
This organ helps humans breathe.
What are the lungs?
Nonliving parts of an ecosystem are called this.
What are abiotic factors?
A wolf is an example of this level of organization.
What is an organism?