AP BIOLOGY

ECOLOGY

ECOLOGICAL SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following represents secondary succession?
A
Moss growing on top of rocks
B
Plants growing in a forest that was destroyed by fire
C
Plants growing on sand dunes
D
Plants growing on a new volcanic island that formed in the ocean
Explanation: 

Detailed explanation-1: -Fire. Oak and hickory forests cleared by wildfire is a renowned example of secondary succession.

Detailed explanation-2: -Secondary succession happens when a climax community or intermediate community is impacted by a disturbance. This restarts the cycle of succession, but not back to the beginning-soil and nutrients are still present.

Detailed explanation-3: -Secondary succession starts when a disturbance (such as wind storms, insect outbreaks, logging, avalanches, bulldozers, or fire) leaves the soil intact. Seeds, spores, and roots usually remain as well. Sites that begin with secondary succession reach the next stage more quickly than during primary succession.

Detailed explanation-4: -A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area. Their nutrients, however, are returned to the ground in the form of ash.

There is 1 question to complete.