Perhaps the most fundamental role that enzymes play in living ...

[nenivikky]

Perhaps the most fundamental role that enzymes play in living cells is
 
  A) attacking foreign bodies like bacteria and viruses
  B) carrying oxygen across cell membranes
  C) facilitating the replication of DNA and the reading of the genetic code
  D) the breaking down of more complex molecules

Question 2

Martian volcanoes are larger than volcanoes on Earth because
 
  A) Mars's weaker gravity makes it easier for tall structures to be built up.
  B) the lack of plate tectonics on Mars means that mantle plumes remain stationary relative to the surface, building up huge, single mountains.
  C) Mars has more internal heat than the Earth so volcanoes naturally grow to much larger sizes
  D) Both A and B

[ghepp]

Answer to Question 1

C

Answer to Question 2

D

[nenivikky]

TYSM

[shewald78]

Excellent