What Is the Simplest Way We Might Detect Life on an Extrasolar

question 63

Multiple Choice

What is the simplest way we might detect life on an extrasolar planet?

• A) listen for radio signals coming from an advanced civilization on the planet
• B) wait for aliens from the planet to visit us
• C) analyze the spectrum of reflected light from the planet
• D) send an interstellar probe to the planetary system

---

Definitions:

Neutrophil

A type of white blood cell that forms an essential part of the immune system, primarily involved in fighting off infections by engulfing bacteria and debris.

Fibroblast

A type of cell found in connective tissue that produces collagen and other fibers.

Chondrocyte

A cell that has secreted the matrix of cartilage and become embedded in it; responsible for the maintenance and repair of cartilage tissue.

Red Blood Cell

A type of blood cell that is primarily responsible for carrying oxygen from the lungs to the rest of the body.