Keystone Species

question 86

Multiple Choice

Keystone species:

• A) are always symbionts.
• B) are typically not the most abundant species in the community.
• C) illustrate secondary succession.
• D) always form the base of a food chain.
• E) are only found in tropical communities.

---

Definitions:

Older Adults

Individuals typically defined as being aged 65 years and older, often with considerations for their social, health, and cognitive changes.

Underperformed

Underperformed refers to performing below the expected or required standard or level.

Individual Differences

Variations among individuals in their thinking, emotion, personality, or behavior.

Core Principle

A fundamental belief or guideline that is foundational to a system, theory, or philosophy.