Which of the Following Limits the Number of Technological Civilizations

question 16

Multiple Choice

Which of the following limits the number of technological civilizations in our galaxy?

• A) the lifetime of M dwarf stars
• B) the number of satellite galaxies of the Milky Way
• C) the fraction of civilizations that wish to communicate with others
• D) the number of planets per star in a habitable zone for longer than a few billion years

Calculate and interpret population growth rates and understand the factors that affect these rates.

Recognize and explain the hierarchical organization within ecology from individuals to the biosphere.

Describe the concept of population density and how it is calculated.

Understand the mechanism of natural selection and how it acts on populations.

---

Definitions:

Emotional Condition

The state of one's emotions or mood at a particular time, which can influence behavior and cognition.

Cognition

refers to mental processes, including perception, memory, thought, judgment, and decision-making, through which individuals understand and interact with the world.

Evolutionarily Adaptive

A feature or behavior that enhances survival and reproduction across generations, shaped by natural selection.

Basic Emotions

A set of universally experienced emotions from which more complex emotions are derived, typically including happiness, sadness, fear, disgust, anger, and surprise.