Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Biology Ecology & Environment
A biocontrol agent to be a part of an integrated pest management should be
1
narrow spectrum and symbiotic
2
species-specific and inactive on non-target organisms
3
species-specific and symbiotic
4
More than one of the above
5
None of the above