Question

2. In a crop land ecosystem, grasshoppers feed on crop plants and cause huge losses to
Farmers. Rodents like rats feed on these grasshoppers. Snakes are measure predators of
rodents and help control their population. Based on the given paragraph answer the questions
given below
a) How can the food chain of this crop land ecosystem be represented.
b) What would happen if all the snakes are removed from the field?
c) What would happen if all the crops in the farm are harvested?
d) Hawks are natural predators of snakes, what would happen if hawks are present
around the field?
e) in a similar manner, draw the food chain of a pond ecosystem.
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Answer 1

a)crop--------> grass hopper --------->rodents ----------->snake

b)number of rodents wilk increase which may cause damage to the ecosystem

c) grasshoppers population will completely disappear

d)hawks would decrease the population of the snakes which may inturn finally effect the grasshoppers population

e)algae ------>small fish --------> large fish

Answer 2

Answer:

1. Grass<grasshopper<roden t< snake<hawks
2. if all the snakes were removed from the field the number of rodents will increase and the number of hawks decreases due to starvation this causes a imbalance in food chain.
3. if all crop were harvested the grasshopper have to shift from that field or they will starve
4. then snakes will never come to that area so if snake is not there rodents will increase
5. aquatic plant<small fish<large fish.

Explanation:

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