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Science - chapter 1, lesson 1

Across
A green chemical in plant cells that allows plants to use the sun's energy to make food
Any of a number of organized or specialized structures withing a living cell
Are oval, membrane covered organelles that supply energy for the cell
A group of similar cells that work together at the same job
Many celled organism
A group of organs that work together to do a certain job
the center of an atom that has most of its mass
One-celled organism
Cells contain a gel-like liquid called cytoplasm
Down
Is a membrane covered structure used for storage
A group of tissues working together to do a certain job
A layer around the outside of the cell
Any living thing that can carry out its life on its own
The smallest unit of living matter