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_____ is the number of individuals per unit area.

_____ succession occurs when a new community develops in a disturbed site where the soil that supported a previous community remains.

_____ is the conversion of a grassland or woodland to desert.

True or False:  The sink is a region of plant tissue where sugars are being produced or released from storage.

_____ is soil with roughly equal amounts of sand, silt, and clay.

Which process occurs when two species compete for a limiting resource, and one drives the other to local extinction?

Which of the following would be vascular tissue of the plant tissue?

_____ is the process by which water flow removes nutrients from soil and carries them away.

The type of physical environment in which a species typically lives is its _____.

Which of the following tissues make up the bulk of the plant?