Question

Plzz answer this....​

Answer 1

Answer:

Explanation:

It is due to the complex system of food chain taking place in  nature itself.

Answer 2

Answer:

energy can't flow in reverse direction

for ex- the grasshopper receive energy from plant . the plants can't take back their energy from grasshopper that's why this is unidirectional

the consumer eats on the producer (plants) plants have pesticides so the producer eats many plants the pesticide content increase in its body.this is also called biomagnification