« previous next »

Author Question: Which of the following is NOT one of the normal types of galaxies? A) Normal spirals B) Barrel ... (Read 27 times)

sabina

  • Hero Member
  • *****
  • Posts: 563
on: Jul 27, 2018
Which of the following is NOT one of the normal types of galaxies?
 
  A) Normal spirals
  B) Barrel spirals
  C) Seyfert spirals
  D) Irregular type II
  E) Dwarf ellipticals

Question 2

Why don't we expect to find life on planets orbiting high-mass stars?
 
  A) The stars are too hot to allow for life.
  B) Planets cannot have stable orbits around high-mass stars.
  C) The high-mass stars emit too much ultraviolet radiation.
  D) The lifetime of a high-mass star is too short.


Liamb2179

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Different Types of Cells Different Types of Cells
Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Different types of bone fractures Different types of bone fractures
Types of uterine fibroids. Types of uterine fibroids.
Identical Twin Normal Birth Position Identical Twin Normal Birth Position
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library