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 30 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 :)


Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

For a complete list of videos, visit our video library