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Biology - Easy

Horizontales
A tiny organism that can make you sick.
A group of cells working together.
A hard structure that supports the body.
The organ that helps you breathe.
A cell that transmits signals in the brain.
The powerhouse of the cell.
A protein that speeds up chemical reactions in the body.
The basic unit of life.
The organ that controls the body and thoughts.
A blood vessel that carries blood from the heart.
Verticales
A place where two bones meet.
A blood vessel that carries blood to the heart.
The body's largest organ.
The gas we need to survive.
Microscopic organisms, some good, some bad.
The liquid part of blood.
A chemical messenger in the body.
Helps you move and stay strong.
The organ that pumps blood.
The molecule that carries genetic information.