Wich of these is an enviromental change that occurs rapidly

a. regrowth after flooding
b. human population growth
c. hurricane
d. ecosystem changing from a medow to pond

C. hurricane because all of the other options occur over the course of years

The answer is C. Hurricane. Because Hurricanes come rabidly and sometimes comes without warning. Hope this helps! ~ Autumn :)                                                                                                          

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.