Those with _____ in Their Spinal Fluid Are More Likely

question 18

Multiple Choice

Those with _____ in their spinal fluid are more likely to develop Alzheimer disease.

• A)acetylcholine
• B)dopamine
• C)amyloid beta
• D)cholinerase

---

Definitions:

Hamilton's Rule

A principle stating that an act of altruism is favored by natural selection if the genetic gain of the recipient, discounted by the relatedness between the altruist and the recipient, exceeds the cost to the altruist.

Adaptive

Traits or behaviors that enhance an organism's ability to survive and reproduce in its environment.

Multilevel Selection

A concept in evolutionary biology that argues selection operates not just on individuals, but also on groups, genes, or traits at different biological hierarchy levels.

Eusociality

The highest level of social organization in animals, characterized by cooperative brood care, generational overlap, and a division of labor between reproductive and non-reproductive individuals.