The very earliest forms of life probably ________. A) required ...

[asmith134]

The very earliest forms of life probably ________.
 
  A) required an external food supply
  B) manufactured their own food supply by photosynthesis
  C) manufactured their own food supply by chemosynthesis
  D) were similar to present-day anaerobic bacteria

Question 2

Shortly after the devastating 2011 Tohoku-Oki Earthquake, the Chikyu drillship began an expedition to study which of the following?
 
  A) Earth's climate change patterns
  B) Earthquake-generated heat from friction
  C) The mechanism that causes tsunamis
  D) The microbiology of the deep-ocean floor
  E) The properties of the deep crust

[quynhmickitran]

Answer to Question 1

A

Answer to Question 2

B

[asmith134]

Great answer, keep it coming

[Viet Thy]

Thanks for the timely response, appreciate it