Question

What is the difference between monocarpic and polycarpic

Answer 1

Monocarpic plant flowers only once in their lifetime while polycarpic flower every year.
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Monocarpic are annual or biennial while polycarpic are perennial.
Monocarpic die after flowering & fruiting while polycarpic do not die after flowering.

Answer 2

Monocarpic and polycarpic is type of plant.
Monocarpic plants are those plants which flower only once in their life. After the flower they produce fruit and die.
Polycarpic plants are those plants which flower every year. Polycarpic plants reproduce sexually their entire life.