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Select the incorrect statement w.r.t. life-span.
Solution:
Life-span is the period from birth to the natural death of an organism. It is a specific trait for each organism and varies greatly among different species, from a few days (e.g., mayfly) to several thousand years (e.g., banyan tree). However, life-span is not necessarily correlated with the size or complexity of an organism. For instance, a crow and a parrot are similar in size, but a crow lives for about 15 years, while a parrot can live for 140 years. Similarly, a mango tree has a much shorter life-span than a banyan tree, despite both being complex plants. Therefore, statement (4) is incorrect.