Classify the events as autogenic or allogenic succession.

a volcanic eruption
wiping out an
entire island

a soybean crop
in nitrogen fixation, leading
to the development of
other species

a tsunami devastating
all the living organism
in a habitat

oak trees preventing
the growth of smaller
sun-seeking shrubs

In ecology, allogenic succession is mediated by the abiotic components of the ecosystem, while the autogenic succession refers to the succession, which is mediated by the biotic components of an ecosystem.  

A volcanic eruption wiping out an entire island is an example of allogenic succession.  

A soybean crop helping in nitrogen fixation, leading to the development of other species is an illustration of autogenic succession.  

A tsunami devastating all the living organism in a habitat is an example of allogenic succession.  

Oak trees preventing the growth of smaller sun-seeking shrubs is an example of autogenic succession.  

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

well, since there is no answer choices, i will give an answer on how it works : )

the two objects are placed together. energy will always be transferred from the hotter object to the cooler object until they are equal. hope this is close to one of the answer choices : )