How is symbiosis different from parasitism? A) Symbiotes often hurt host organisms; parasites often
help them

B) Symbiosis only occurs within animals; parasitism only
occurs within humans

C) Symbiosis only occurs within humans; parasitism only
occurs within animals

D) Symbiotes often help host organisms; parasites often
hurt them

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. heat from the poles back down towards the equator.