The proposition that no two species can occupy the same ...

[CQXA]

The proposition that no two species can occupy the same ecological niche is known as
 
  A) natural selection.
  B) symbiosis.
  C) ecological niche theory.
  D) competitive exclusion.
  E) trophic pyramid theory.

Question 2

On cool spring mornings, veils of fog can often be seen rising above warm lakes and ponds. This type fog is specifically an example of ________ fog.
 
  A) evaporation B) valley C) radiation D) upslope E) convection

[l.stuut]

Answer to Question 1

D

Answer to Question 2

A

[CQXA]

Wow, this really help

[debra928]

Thanks for the timely response, appreciate it