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Rewards Science Lesson 3 Vocab

Across
A type of reindeer living in northern Canada and Alaska.
Changing waste to reusable items.
A simple, nonflowering plant that is usually found in or around water.
In relation to something else; comparatively.
The process by which certain organisms break down energy-rich molecules in order to make their own food.
A killer whale
An organism that lives in or on another organism and receives benefits while harming the other organism.
So small as to be seen only with a microscope.
The result of being placed, or arranged, in a certain way.
Down
Shared.
More than one alga; the plural of alga.
An instrument used to see very small things.
Organisms that break down dead organisms.
Organisms that eat other organisms.
Organisms that produce their own food.
Slow growing plants composed of algae and fungi.