cells
The smallest unit of life.
What is a cell?
These cells carry oxygen in animals.
What are blood cells?)
A group of similar cells that work together.
What is tissue?
These plant cells store or make food.
What are leaf cells?
The organization level made of groups of similar cells.
What is tissue?
Organisms made of just one cell.
What is unicellular?
These cells help muscles move.
What are muscle cells?
This type of tissue in animals helps them move.
What is muscle tissue?
These plant cells take in water from the soil.
What are root cells?
The next level after tissues, made of different tissue types.
What is an organ?
Organisms made of many cells.
What is multicellular?
This type of cell protects an animal from infections.
What are white blood cells?
These tissues in plants transport water and nutrients.
What is vascular tissue?
This structure helps plant stems stay stiff and strong.
What are bundles of cells?
The next level after organs, made of multiple organs working together.
What is an organ system?
The type of cells that form a layer to protect an animal’s body.
What are skin cells?
The special muscle cells that keep the heart beating.
What are cardiac muscle cells?
This tissue type in animals holds body parts together.
What is connective tissue?
The part of the plant where photosynthesis happens.
What are leaves?
The final level of biological organization.
What is an organism?
These cells send messages between the brain and the body.
what are nerve cells
These cells deliver signals from the brain to the rest of the body.
What are nerve cells?
The plant tissue responsible for carrying water from roots to leaves.
What are tubes?
The tiny openings in leaves that allow air to enter.
What are stomata?
The system that includes the heart and blood vessels.
What is the circulatory system?