Which Theory of Water Transport in Xylem Can Also Be

question 8

Multiple Choice

Which theory of water transport in xylem can also be used to explain the movement of water in nonvascular plants such as mosses?

• A)cohesion-tension
• B)capillarity
• C)proton pump
• D)pressure flow
• E)root pressure

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Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, eventually triggers a conditioned response.

Unconditioned Reinforcer

A stimulus that naturally and automatically triggers a response without any need for learning, such as food for a hungry animal.

Conditioned Reinforcer

An initially neutral stimulus that acquires the capacity to serve as a reinforcer through association with an unconditioned reinforcer.

Operant Conditioning

An educational process that involves altering the degree of a behavior by introducing reinforcements or deterrents.