This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Hubble's galaxy classification diagram (the tuning fork) A) explains active galactic nuclei. B) ... (Read 88 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Hubble's galaxy classification diagram (the tuning fork)
 
  A) explains active galactic nuclei.
  B) shows how galaxies evolve from one form to another.
  C) suggests the existence of black holes.
  D) relates galaxies according to their shapes, but not according to any evolutionary status.

Question 2

Which of the following best describes what we mean by a habitable world?
 
  A) a planet or moon that could support life, if any life happened to be on it
  B) a planet or moon with life
  C) a planet or moon that lies within its star's habitable zone
  D) a planet or moon on which humans could survive if we happened to go there


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


mynx

  • Hero Member
  • *****
  • Posts: 555
Reply #2 on: Jul 27, 2018
TY


micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

The elliptical galaxy Centaurus A at visible, far-infrared and x-ray wavelengths. The elliptical galaxy Centaurus A at visible, far-infrared and x-ray wavelengths.
Hertzsprung–Russell diagram Hertzsprung–Russell diagram
Blood Stem cell classification Blood Stem cell classification
Plant Diagram Plant Diagram
Bacteria Diagram Bacteria Diagram
Interphase Diagram Interphase Diagram
Video: Dorsal Recumbent Position

For a complete list of videos, visit our video library