The First Vascular Plants Occurred in the Fossil Record About

question 46

Multiple Choice

The first vascular plants occurred in the fossil record about _________ years ago.

• A) 400 million
• B) 1 million
• C) 100,000
• D) 250 million

---

Definitions:

Influence Learning

Refers to the process by which individuals alter their behavior, attitudes, or knowledge based on observed behaviors of others or by being in their presence, often linked to social or observational learning.

Variable-Ratio Schedule

A type of reinforcement schedule in which a response is reinforced after an unpredictable number of responses, promoting high and steady response rates.

Fixed-Ratio Schedule

A reinforcement strategy in behaviorism where a response is reinforced only after a specified number of responses.

Reinforcement

In behavioral psychology, a process by which a behavior becomes more likely to occur because it is followed by a reward or the removal of an unpleasant stimulus.