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(a) Explain any two defence mechanisms plants have evolved against their predators
(b)How does predation differ from parasitism
Carries 3 marks.
Class 12 CBSE
Answers
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here is ur ans.
Question :-
a) Explain any two defence mechanisms plants have evolved against their predators.
b) How does predation differ from parasitism. ?
Answer :-
a) Plants may produce/store chemicals such as nicotine strychnine etc. for defence which inhibit digestion/disrupts reproduction/kill the predator//Calotropis produces. highly poisonous cardiac glycosides//plants may produce chemicals such as nicotine/ caffeine/ quinine/ strychnine/ opium are produced as defence.
b) Predation is a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked). The predator kills the prey at once and has it in the form of food whereas parasite lives in or on another organism (its host) and benefits by deriving nutrients at the other's expense. This type of interaction is called as parasitism. One of the partners is benefitted while the other partner is harmed.
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