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which of the following is the most likely immediate effect of an increase in runoff containing cadmium on the trophic structure of the river community

Sagot :

Martebi

The options to the question above are:

A-the population of cladophora will decrease, resulting in an increase in the trout population

B-there will be a larger decrease in the trout population, resulting in an increase in damselfy nymphs

C- increased stream volume will provide more area for the trout to reproduce, causing a large increase in the population of algae

D- the population of trout will decrease because the population of damselfly nymphs will decline

The most likely immediate effect of an increase in runoff containing cadmium on the trophic structure of the river community is that there will be a larger decrease in the trout population, resulting in an increase in damselfy nymphs

  • Cadmium is known to increase in the food chain and also pile up in humans. It is often taken up in water by algae, insects, and then up the food chain to fish, where it is piled up it in their gills, liver and kidneys .

It is a very toxic heavy metal that comes into the environment through anthropogenic sources such as poor quality of surface water, marine water.

Conclusively we can therefore say that Option b is the right answer because trout is negatively affected by but not the case with damselfly.

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