MCQ
Main factor in increasing the population is
- AMore reproductive capacity
- BEarly marriage
- ✓Higher natality and lower mortality
- DSuitable and favourable environment
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Choose the correct option for $A, B, C, D$ and $E$

$II.$ 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