Diffusion is a passive movement. The correct answer is b
Answer:
An organism obtains food and resources from its habitat.
Explanation:
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Answer:
a) root system .take care
Examining fossil and pollen records Extracting deep ice cores from glaciers and the polar ice caps Examining growth rings on trees All of these methods provide clues to past temperature, precipitation, and wind patterns as well as the chemical make-up of the atmosphere.