This topic contains a solution. Click here to go to the answer

Author Question: The very first living organisms on the Earth were probably A) chemoheterotrophs B) ... (Read 67 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
The very first living organisms on the Earth were probably
 
  A) chemoheterotrophs
  B) photoautotrophs
  C) photoheterotrophs
  D) chemoautotrophs

Question 2

Brown dwarfs have
 
  A) very narrow habitable zones
  B) no habitable zones
  C) very wide habitable zones
  D) habitable zones similar to the Sun



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Melissahxx

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

D

Answer to Question 2

B




cartlidgeashley

  • Member
  • Posts: 572
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

For a complete list of videos, visit our video library