Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
In case of a parasitic food chain, the shape of the pyramid of number is always:
1
Upright
2
Linear
3
Inverted
4
More than one of the above
5
None of the above