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6th Grade Science (Ch. 8-10)

T.C. After School
Across
Reaction to a stimulus.
Species that is in danger of becoming endangered.
Cells with membrane-bound structures are called:
Organic molecules made up of amino acids.
Change from liquid to gas.
Water falling from clouds.
Any living thing.
All of the changes that take place during the life of an organism.
Smallest unit of an organism.
Cells without membrane-bound structures
Down
The word we use to describe a species that is in danger of becoming extinct.
Any living thing.
Organelles where energy is released when food is broken down into carbon dioxide and water.
The variety of life in a ecosystem.
The chemical that contains the code for the cell's structure and activities.
Change from gas to liquid.
Anything that causes change.
All cells are directed by the:
The word we use to describe a species that no longer exists.