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

Author Question: In globular clusters, the brightest stars will be: A) massive blue main sequence stars. B) red ... (Read 119 times)

j.rubin

  • Hero Member
  • *****
  • Posts: 557
on: Jul 27, 2018
In globular clusters, the brightest stars will be:
 
  A) massive blue main sequence stars.
  B) red supergiants.
  C) T Tauri stars.
  D) blue stragglers.
  E) planetary nebulae.

Question 2

Distinguish an Sa from an Sc galaxy.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Madisongo23

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

Sa spirals have more tightly wound spiral arms, and a wider nuclear bulge; Sc are flatter, dustier, and have looser arms.


j.rubin

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 27, 2018
Thanks


Madisongo23

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Blue whale skeleton at the Canadian Museum of Nature in Ottawa, Ontario. Blue whale skeleton at the Canadian Museum of Nature in Ottawa, Ontario.
Colostomy sites (blue area is where colon was removed). Colostomy sites (blue area is where colon was removed).
blue bird of paradise blue bird of paradise
Common Blue Violet Common Blue Violet
Blue in a range of values Blue in a range of values
Common restriction enzymes, with their recognition sequence, DNA cutting patterns, and sources Common restriction enzymes, with their recognition sequence, DNA cutting patterns, and sources
Video: Embryonic development - Week 4

For a complete list of videos, visit our video library