Q. I. Population evolve to maximise their reproductive fitness, also called Darwinian reproductive 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 constraints imposed by biotic and abiotic factors in their habitat Select the combination of correct statements
A) I, II and III
B) I, III and IV
C) III, IV and V
D) All except III
Explanation
The housefly which has a short life span and produces a large number of eggs could be considered as ‘r’ selected species Depend upon the giving birth their are two type of species ‘r’ selected species organism of this type give more young ones during their life cycle. Parent care their children less and their size are also little ‘K’ Selected Species Organisms of this kind gives less birth during their life cycle. They care more their children. Their size and life span are more than $r$ selected species, $e.g.,$ man, mammal, bird, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.