Charles Darwin, who proposed the theory of evolution, was actually a marine biologist who specialized in:
A) whales
B) fishes
C) marine birds
D) barnacles
E) oysters

C. Marine birds.

Explanation:

I honestly have no clue, but he did study finches (a type of bird). So I am going to go with that.

this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times