When compared to their warmer water counterparts, cold-water ...

[hbsimmons88]

When compared to their warmer water counterparts, cold-water plankton often ________.
 
  A) are larger in size
  B) are smaller in size
  C) exhibit countershading
  D) have more spines and ornamentation on the cell wall
  E) reproduce asexually only

Question 2

Planktonic organisms often have needle-like structures that ________.
 
  A) are used as a defense mechanism
  B) are used as paddles to catch ocean currents
  C) increase density
  D) prevent sinking
  E) serve as a skeleton to support the diatom

[quynhmickitran]

Answer to Question 1

A

Answer to Question 2

D

[hbsimmons88]

Both answers were spot on, thank you once again

[quynhmickitran]

Great! Please up vote