Examlex
Explain how crater counts allow us to estimate the ages of surfaces throughout the solarsystem.
Heterotrophs
Organisms that obtain their energy by consuming other living or deceased organisms, unable to synthesize their own food.
Photosynthesize
The process by which green plants, algae, and certain bacteria convert light energy into chemical energy, producing oxygen as a byproduct.
Grana
Stacks of thylakoids in the chloroplasts of plant cells, where photosynthesis takes place.
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