Living indicators are species that are sensitive to changes in the environment. For example air pollution can be monitored by looking at lichen, which are sensitive to sulphur dioxide in the air. The number of lichen at a particular location indicates how clear the air is. Similarly, mayfly larvae are good indicators for water pollution because they're sensitive to the concentration of dissolved oxygen in water.
Non-living indicators are things like satellites which can measure the temperature of the sea surface, weather stations that measure atmospheric temperature, rain gauges to measure rainfall, and dissolved oxygen meters to measure concentration of dissolved oxygen in water.
Mutualism is the correct answer in an interaction in which both organisms benefit.
Mutualism may be a symbiotic interaction where both or all individuals enjoy the connection .
<h3>Species of symbiosis and their interactions-</h3>
- Mutualism is where both organisms benefit.
- Commensalism is where one benefits and therefore the other is unaffected.
- Parasitism is where one benefits and therefore the other is harmed.
The term "symbiosis" includes a broad range of species interactions but typically refers to 3 major types: mutualism, commensalism, and parasitism.
Thus, the correct option is B, Mutualism where the interaction of both organisms benefits.
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