Question

Select the option which arranges the given organisms in ascending order of their life span.
A) Parrot < Crow < Butterfly < Banyan tree
B) Butterfly < Crow < Parrot < Crocodile
C) Fruit Fly < Crocodile < Parrot < Banyan tree
D) Parrot < Tortoise < Dog < Crow

Answer 1

Life span is the period of time between the birth and death of an organism. From the organisms mentioned, Drosophila melanogaster has the least lifespan and the fig tree has the highest.

Complete answer: The species of fly in the family Drosophilidae is Drosophila melanogaster. Common fruit fly or vinegar fly is the general name of this species. D. melanogaster is typically used in research because of its rapid life cycle, relatively simple genetics with only four pairs of chromosomes, and a large number of offspring per generation. At 25 °C under the optimum temperature, the D. melanogaster lives for a span of a maximum of about 50 days from egg to its death. As with many ectothermic species, the developmental period for D. melanogaster varies with temperature. Almost 400 eggs called embryos are laid by the eggs five at a time, into aromatic rotting fruit and other material that are suitable like mushrooms that decay and sap fluxes. Drosophila melanogaster undergoes a full metamorphosis so it is called the holometabolous insect in nature. In the 4 types of stages, their life cycle is broken down as embryo, larva, pupa, adult in the growth of specific order. 30–40 years is the minimum average lifespan of most crocodile species and in the case of larger species an average of 60–70 years. Parrot is from 50-95 years, depending on the species. Banyan tree has a maximum life span of 200 years.
Hence, the correct answer is option C.

Note: Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Vividly coloured parrots are mostly present BUT some are multi-coloured. A banyan is a fig that begins its life as an epiphyte.