Mating rituals or displays can be very complex but are also behaviors.

d. changes in climate and historical records

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garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.