Why are organisms in rocky intertidal zones sorted into ...

[sam.t96]

Why are organisms in rocky intertidal zones sorted into horizontal bands?
 A) Crashing waves remove weaker ones close to the water line.
  B) Some float and are carried upward at high tide.
  C) Some can better tolerate drying out between high tides.
  D) Some need to stay out of the water to breathe.

Question 2

Primary productivity in estuaries is high because ____.
 A) light is seasonal and dim
  B) nutrients are abundant
  C) there is no saltwater
  D) there are no primary consumers

[shayla]

Answer to Question 1

C

Answer to Question 2

B