Based on the Plant Fossil Record, Which of These Events

question 62

Multiple Choice

Based on the plant fossil record, which of these events likely occurred most recently?

• A) extensive growth of gymnosperm forests
• B) colonization of land by early liverworts and mosses
• C) rise and diversification of angiosperms
• D) carboniferous swamps with giant horsetails and lycophytes

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Definitions:

Variable Ratio Schedule

A reinforcement schedule where a response is reinforced after an unpredictable number of responses, leading to a high and steady rate of response.

Fixed Interval Schedule

A reinforcement schedule that rewards the first response after a predetermined period has passed.

Chocolate Ice Cream

A frozen dessert made from dairy products and flavored with cocoa and sugar, among other ingredients.

Avoidance Learning

A type of learning in which an individual learns a behavior to prevent the occurrence of an unpleasant stimulus.