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

Author Question: What evidence suggests that life arises relatively easily? A) Life was present on Earth soon ... (Read 135 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
What evidence suggests that life arises relatively easily?
 
  A) Life was present on Earth soon after the end of the heavy bombardment.
  B) Life is currently present in extreme environments like deep ocean volcanic vents.
  C) All organisms on Earth use DNA as their genetic material.
  D) Tardigrades, small animals, can survive exposure to the near-vacuum of space.

Question 2

The Chandrasekhar limit is
 
  A) the upper-mass limit for a white dwarf.
  B) the temperature at which hydrogen fusion starts.
  C) the point at which a planetary nebula forms.
  D) the temperature at which helium fusion starts.
  E) the lower-mass limit for a Type II supernova.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

moormoney

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


jc611

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Gracias!

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

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.

Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
The basic unit of life - cell The basic unit of life - cell
Common skin signs are often evidence of an illness or disorder. A nodule is a larger papule; acne ... Common skin signs are often evidence of an illness or disorder. A nodule is a larger papule; acne ...
How to calculate present value (Question 1) How to calculate present value (Question 1)
A. Clara Peeters Still Life with Fruit and Flowers A. Clara Peeters Still Life with Fruit and Flowers
Half-life explained Half-life explained
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library