MCQ
The utilization of elements and compounds in nature and their subsequent return to the environment is called:
- ALife cycles
- BCyclic pathway
- CMaterial cycles
- DRecycling
Explanation:
The utilisation of elements and compounds in nature and their subsequent return to the environment is called material cycles. It is also called as a biogeochemical cycle.
In biology, a life cycle is a series of changes in form that an organism undergoes, returning to the starting state.
Recycle is the conversion of waste into useful forms.
Cyclic pathways tend to use the last product they create to re-begin the cycle.
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$I.$ Charles Elton developed the concept of ecological pyramid
$II.$ After the name these pyramids are also called as Eltonian pyramids
$III.$ It is a graphical representation or pyramid shaped diagram which depicts the number of organisms, biomass and energy at each trophic level
Which of the statements given above are correct?