When We Analyze Whether a World Is a Possible Home

question 99

Multiple Choice

When we analyze whether a world is a possible home to life,the key thing we look for is

• A)the past or present existence of liquid water.
• B)evidence of atmospheric oxygen.
• C)the presence of organic molecules such as amino acids.
• D)surface coloration changes that could indicate vegetative growth.

---

Definitions:

Pylorus

The region of the stomach that connects to the duodenum, responsible for the regulated passage of digested food.

Stomach

A muscular organ in the gastrointestinal tract that breaks down food through the action of acids and enzymes.

Omentum

A layer of fatty tissue that covers and supports the intestines and organs in the lower abdominal area.

Small Intestine

A part of the gastrointestinal tract that extends from the stomach to the large intestine, where most of the digestion and absorption of nutrients occur.