STD 12 - 7. human health and disease — Biology STD 12 Science — Question

$(a)$ High fertility rate

$(b)$ Rapidly rising mortality rate

$(c)$ Very young age distribution

$(d)$ Rapid population growth

$(e)$ Rapidly falling mortality rate

$(f)$ Very old age distribution
 

$(i)$ Due to alteration of $DNA$ sequences genotype is change.

$(ii)$ Changes occur in phenotype.

$(iii)$ Variation create in $DNA$