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

Author Question: How have elliptical and spiral galaxies developed differently through interactions with other ... (Read 11 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
How have elliptical and spiral galaxies developed differently through interactions with other galaxies?
 
  What will be an ideal response?

Question 2

A hot object that is glowing orange will become redder as it cools.
 
  a. True
  b. False
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Anna

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 27, 2018
Answer to Question 1

Elliptical galaxies are usually found in rich clusters with many galaxies, and most of the galaxies in these clusters are elliptical. Collisions in a rich cluster will collide and interact often, and this must mean that ellipticals have been through collisions in their lifetimes.Collision s trigger bursts of star formation which consumes gas and dust. Ellipticals do not contain much gas and dust because star formation triggered by collisions and mergers have used up all of the available gas.The random stellar orbits found in ellipticals would not be disrupted through collisions and mergers.Spiral galaxies are found in poor clusters where collisions are rare. The disk of a spiral galaxy would be disrupted and destroyed in a collision with another large galaxy. Spirals contain large amounts of gas and dust that would be used up in a starburst triggered by a collision with another galaxy. Spiral galaxies can not have had collisions with other large galaxies.Interactio ns between spirals and smaller galaxies appear to be important in maintaining structures like spiral arms and bars.

Answer to Question 2

True


audragclark

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Cottontails' ears have developed to hear even whisper-quiet sounds at incredible distances. Cottontails' ears have developed to hear even whisper-quiet sounds at incredible distances.
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Robert Smithson, Spiral Jetty. Robert Smithson, Spiral Jetty.
Typical ignition timing map developed from testing and used by the vehicle computer to provide the ... Typical ignition timing map developed from testing and used by the vehicle computer to provide the ...
Potential Interactions of Medications, Herbs, Nutrients, and Foods (2 of 2) Potential Interactions of Medications, Herbs, Nutrients, and Foods (2 of 2)
Cross-regulatory interactions among gap genes Cross-regulatory interactions among gap genes
Video: Humerus Adduction Animation

For a complete list of videos, visit our video library