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

Author Question: When did the extinction of the dinosaurs occur? A) about 3.5 billion years ago B) about 2 ... (Read 91 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
When did the extinction of the dinosaurs occur?
 
  A) about 3.5 billion years ago
  B) about 2 billion years ago
  C) 540 million years ago
  D) 65 million years ago
  E) less than 1 million years ago

Question 2

How does a lenticular galaxy differ from a normal spiral galaxy?
 
  A) It has no bulge.
  B) It has an elongated bulge resembling a bar more than a sphere.
  C) It is flatter in shape.
  D) It has no gas or dust.
  E) It has no spiral arms.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dmurph1496

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

D

Answer to Question 2

E


JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 27, 2018
Thanks


dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

The Dingo was the first placental mammal introduced to Australia, around 4000 years ago The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
The proportion of obese and extremely obese adults in the United States has increased over the past The proportion of obese and extremely obese adults in the United States has increased over the past
Summary view of the light reactions as they occur in the thylakoid Summary view of the light reactions as they occur in the thylakoid
In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents
Dinosaurs of a Feather Dinosaurs of a Feather
Earth 430 Million Years Ago Earth 430 Million Years Ago
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library