Vestigial structures still exist in the individuals of many species because natural selection: a. acts against only harmful traits. b. can act only on structures that can be seen. c. affects only organisms that have beneficial traits. d. is only a random change that happens very rarely.

In Natural Selection, Vestigial structures do not harm the organism. Nature selects against only harmful traits.

A. Acts against only harmful traits.

Explanation:

Apex

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

c. is the correct answer