Why Do Ferns Often Grow in Moist Habitats

question 217

Multiple Choice

Why do ferns often grow in moist habitats?

• A) They have flagellated spores that require liquid water for dispersal.
• B) They have thin cuticles so would desiccate in a drier habitat.
• C) They lack vascular tissue for long-distance transport of water within the plant.
• D) They have flagellated sperm that require liquid water to swim to the egg.
• E) They lack stomata so absorb water from their environment by diffusion.

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Definitions:

Aversive US

An unpleasant or harmful unconditioned stimulus used in classical conditioning to produce a negative response.

Appetitive CS

A conditioned stimulus that predicts the arrival of a desirable outcome, often used in research to study how anticipatory behaviors are learned.

Unconditioned Stimulus

A stimulus that innately and spontaneously evokes a reaction without any previous conditioning.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention.