Discuss,life history traits of an organism have evolved in relation to the constraints imposed by biotic and abiotic factros in their habitat.

I. Population evolve to maximise their reproductive fitness, also called Darwinian fitness (higher 'r' value) in the habitat in which they live II. The population growth rate r is inversely related to generation time III. The housefly , which has a short life span and produces a large number of eggs, could be considered as a K selected species IV. under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategies V. life history traits of organisms have evolved in relation to the constrains imposed by biotic and abitioc factors in their habitat. Select the combination of correction statements

Ecologists suggest that life history trait of organisms have evolved in relation to the constraints imposed by the

[A] : A biotic community exhibits adaptive radiation . [R] : The organisms of different populations have some features in common due to the effect of the same abiotic factors of the environment .

The complex organic compounds that may have first evolved in the direction of origin of life on earth, may have been

The simple organic compounds that may have first evolved in the direction of life on the Earth mustt have been :