Question

Which among the following organisms is known as a polluted water indicator?
A Tubifex
B E.coli
C Chironomus larvae
D All of the above

Answer 1

Hint Pollution is a change in the physical, chemical, or biological features of air, water, or soil that might disrupt the life of any living organism or create a possible health danger. Man's development, civilization, and rapid industrialisation have wreaked havoc on the environment, resulting in pollution.

Complete step by step answer:
Species used as indicators Any biological species that defines a traitor property of the environment is considered an indicator species. For example, species may signify a disease epidemic, pollution, species competition, or climatic change in the habitat. Indicator species are among the most vulnerable in a region, and they can serve as an early warning system for monitoring biologists.
A species whose existence implies the presence of a group of other species, whereas its absence signifies the absence of the entire group.
A keystone species is one whose presence or absence in an ecosystem causes significant changes in the abundance or occurrence of at least one other species.
A species whose presence suggests abiotic conditions caused by humans, such as air or water pollution (often called a pollution indicator species).
A dominating species that contributes a significant portion of the biomass or population in a given area.
A species that suggests specific environmental conditions, such as soil or rock kinds.
A species that is expected to be sensitive to environmental changes such as global warming or altered fire regimes, and hence serves as an early warning indication (also known as a bioindicator species).
A species that is expected to be sensitive to environmental changes such as global warming or altered fire regimes, and hence serves as an early warning indication (also known as a bioindicator species).
Several chronic diseases are caused by water contamination. To get rid of certain hazardous microorganisms, drinking water must be treated. Tubifex, E. Coli, sewage fungus, sludge worms, and blood worms are examples of fresh water indicators, while tubifex, E. Coli, sewage fungus, sludge worms, and blood worms are examples of contaminated water indicators.

As a result, option D is the proper response.

Note: Microbes, plants, animals, bacteria, biotic communities, and other organisms have varying degrees of sensitivity and can be used as indicators to access and anticipate environmental pollution in real time.