Answer:
Plants.
Explanation:
Note: I may be wrong, if so, i am deeply sorry<3
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.
Is this science?? Also may I hv options.
Answer: it could mean you are nervous people often refer butterflies to a nervous jittery feeling in their stomach or it could mean your pretty or when people call other people names and things like that then you could say im just a catterpillar now but im gonna transform into a beautiful butterfly soon id.k im not really sure