All forms of energy can be traced back to________

Biologist are people who study_______

To make food plants need________and _______.

The process by which cells of green plants make energy is called________

During photosynthesis a gas that escapes into the air is______

If you were to put a carboard box over a tomato plant, it would stop carrying on photosythesis. This is mostly because you have cut off it's______

To release energy, the cells of human beings slowly combine glucose and______

tube in a plant that carries water upward

Tube in a plant that carries food downward

tiny openings on the underside of a leaf

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