Question

select the correct answer.
toddy is explaining to his class that hydrothermal vents form isolated ecosystems. which point should he explain?
a. the organisms of the hydrothermal vent do not interact with the organisms of different ecosystem.
b. the organisms of the hydrothermal vent are a part of other food webs.
c. there is a continuous input and output of energy and materials in the hydrothermal vent.
d. sunlight plays a vital role in the hydrothermal vent ecosystem.

Explanation:

An isolated ecosystem means little to no interaction with other ecosystems. Option A is incorrect as organisms within the vent interact. Option C implies interaction (being part of other food webs), so it's wrong. Hydrothermal vents are deep - sea and sunlight is not vital (chemosynthesis is the energy source), so D is wrong. Option B correctly states that organisms of the hydrothermal vent do not interact with organisms of different ecosystems, which is a characteristic of an isolated ecosystem.

Answer:

B. The organisms of the hydrothermal vent are not a part of other food webs.