1
an object’s change in position relative to a reference point .
2
a set of interacting parts that work together; sometimes considered distinct from their surroundings only for the purpose of study.
3
a plant organ that is the main site of photosynthesis and transpiration.
4
the short-term state of the atmosphere, including temperature, humidity, precipitation, wind, and visibility .
5
an organism that is killed and eaten by another organism .
6
the mainly underground organ of vascular plants that holds plants in place and absorbs and stores water and minerals from the soil .
7
any material that attracts iron or materials containing iron.
8
the process of working alone or with others to quickly and freely generate ideas to solve a problem.
9
the continuous movement of water between the atmosphere, the land, the oceans, and living things.
10
space and all the matter and energy in it.
11
the place where an organism usually lives.
12
A division of the year that is characterized by recurring weather conditions, and determined by both Earth's tilt relative to the sun and Earth's position in its orbit around the sun.
13
An inherited trait that improves an individual's ability to survive and reproduce in a particular environment.
14
A measure of the amount of matter in an object.
15
An unwanted change to a signal.
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