The trophic level of Cuscuta, Orobanche and Albugo is
Decomposer
Primary producer
Primary consumer
Secondary consumer
Assertion : Biotic community has higher position than population in ecological hierarchy.
Reason : Population of similar individuals remains isolated in the community.
Detritus food chain starts from
Secondary productivity is rate of formation ofnew organic matter by
In an ecosystem bacteria are considered as
Whale is