Biology Forums - Study Force

1) Which of the following natural disturbance would likely result in primary succession?

a. a river flooding and removing the natural vegetation located on the river banks

b. clearcutting trees in southwestern Alberta to prevent the spread of pine beetles

c. thunderstorms and lightning destroying a forest by fire

d. a glacier receding and exposing land underneath


b) Which of the following disturbance would likely result in primary succession?

a. Receding Kaskawulsh Glacier diverts Slims River, exposing the sediments in the riverbed.

b. Shenandoah National Park floods, resulting in destruction of plant life in the area.

c. Seafloor habitat is disturbed by trawlers that are being dragged along the seabed.

d. Some areas in the direct blast zone of Mount St. Helens’ volcanic eruption are covered with pyroclastic flow deposits.






2) All of the statements are correct regarding ecological succession EXCEPT


a. there is less competition earlier in the succession process

b. initial pioneer species are producers

c. it is a random process

d. species diversity increases as succession proceeds

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thanks, can you please help me with my other post that  will posted please