Amaya collected insects in the forest. she was unable to identify one unusual looking insect using a dichotomous key. amaya concluded that the insect must be a new species. which facts would support the conclusion that the insect is a new species?

a. amaya skipped a question in the dichotomous key that was not easy to answer.
b. the way the insect was collected may have caused damage to its exoskeleton and wings.
c. several other thorough and up-to-date dichotomous keys also failed to identify the insect.
d. the normal diet of many insects in the forest has been seriously altered by a recent drought.

The correct option is C.

A dichotomous key is a biological tool which allows scientists to determine the identity of a living organism. The tool is composed of various keys, which guide scientists towards the correct name of an organism. Dichotomous key can be used to identify all the living organisms in existence. In a situation, where several

dichotomous keys fail to identify a particular organism, then such an organism is probably a new specie.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

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