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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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Anonymous samantacastillo
wrote...
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2 months ago
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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Answer verified by a subject expert
Anonymoussumik
wrote...
#1
2 months ago
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#1

Primary succession occurs when there is bare rock is exposed or we can say new land is formed. And that land is colonize for the first time.

In the given options options 'a glacier receding and exposing land underneath' is the correct option. Because in this case only there is no colonization earlier.

Other options are incorrect because in other options there are the land is already colonized.

#2

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.
This verified answer contains over 160 words.
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Anonymous Author
wrote...
#2
2 months ago
thanks, can you please help me with my other post that  will posted please
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