The correct answer is letter D.
The statement, "most scientists do not use the metric system or SI,"
is not true when performing biological investigations. In fact, all scientists
use this type of system in order to communicate the same information to other
scientists around the world.
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Answer:
The correct answer is - warning system.
Explanation:
Warning systems are a type of system that could be technical or biological in nature that can help in assessing or inform about the possible danger or change in a particular setting such as ecosystem, weather, water quality, and many others. It helps in avoiding such threats before occurring or become serious threats.
Certain biological species that live or require a particular set of conditions for their survival and reproduction can act as a biological warning system for water pollution, air pollution.
I think it's true hope I helped:)