Most Active Galactic Nuclei Are Found at Large Distances from Us,with

question 68

Multiple Choice

Most active galactic nuclei are found at large distances from us,with relatively few nearby.What does this imply?

• A)Supermassive black holes existed only when the universe was young,and no longer exist today.
• B)Active galactic nuclei can form only at large distances from the Milky Way.
• C)Active galactic nuclei exist tend to become less active as they age.
• D)The jets seen in many active galactic nuclei must cause them to move far away from us.

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Definitions:

Chyme

The semi-fluid mass of partly digested food that is passed from the stomach to the small intestine for further digestion.

Small Intestine

The part of the digestive tract that absorbs nutrients and minerals from food, extending from the stomach to the large intestine.

Abdominal Wall

The layer of muscles and tissue that forms the boundary of the abdomen, providing structural support and protection for abdominal organs.

Sigmoidoscopy

A medical examination method employing a flexible tube with a light and camera to view the interior of the sigmoid colon and rectum.