Renaude Is Hooked Up to an Electroencephalograph (EEG) in a Sleep

question 32

Multiple Choice

Renaude is hooked up to an electroencephalograph (EEG) in a sleep lab. As the researcher watches the printout from the EEG, sleep spindles begin to appear. What can the researcher conclude about Renaude's state of consciousness, based on this information?

• A)She has just entered stage 2 sleep.
• B)She is currently in REM sleep.
• C)She has just entered stage 1 sleep.
• D)She is still awake, but is relaxed and drowsy.

---

Definitions:

Paralogs

Genes that are related by duplication within a genome and can evolve new functions, despite having a common ancestor.

Species Tree

A conceptual tree diagram that shows the evolutionary relationships among various species based upon their genetic differences and similarities.

Great Apes

A group of primates that includes humans, chimpanzees, gorillas, and orangutans, characterized by their large brains, lack of tail, and advanced cognitive abilities.

Most Closely Related

Referring to the species, groups, or genes that share the most recent common ancestor in a phylogenetic tree, indicating close evolutionary relationships.