There Are ________ Stages of Sleep

question 91

Multiple Choice

There are ________ stages of sleep.

• A) two
• B) three
• C) four
• D) five

Compare Oldowan and Acheulean technological advancements and their impact on human evolution.

Identify and describe the evidence used to study brain evolution in humans over time.

Understand the classification of humans in biological taxonomy, including the concept of the hominin clade.

Discuss hypotheses related to the evolution of bipedality in humans.

---

Definitions:

CS

An abbreviation for conditioned stimulus, which in classical conditioning is a previously neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

US

Refers to the United States, a country located primarily in North America.

Contiguous

Adjacent or sharing a common border; physically touching or next to each other.

Fear Conditioning

A learning process where an individual associates a previously neutral stimulus with an aversive event, leading to the elicitation of a fear response to the neutral stimulus.