Question

Which of the following about secondary succession is not true?
a.
It occurs in ecosystems without soil.
b.
It occurs in ecosystems that are already established.
c.
It reduces the number of species in an ecosystem.
d.
It is initiated by a disruptive event.

Answer 1

Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. Examples include areas which have been cleared of existing vegetation (such as after tree-felling in a woodland) and destructive events such as fires. Secondary succession is usually much quicker than primary succession for the following reasons: There is already an existing seed bank of suitable plants in the soil. Root systems undisturbed in the soil, stumps and other plant parts from previously existing plants can rapidly regenerate. The fertility and structure of the soil has also already been substantially modified by previous organisms to make it more suitable for growth and colonization.

You should be able to get the answer with this.

Answer 2

I still have no clue :(

Answer 3

Ok that was basically a long retricedefinition of secondary succession, within the definition there were examples of answer choices you listed.

From there you can cancel things out and make it easier.

Answer 4

ohh lol

Answer 5

I still dont get it CTFU CX

Answer 6

@jboy_52

Answer 7

i think its B

Answer 8

thanks

Answer 9

your welcome :)