- APavo cristatus
- BMilvus migrans
- CParadise flycatcher
- DPasser domesticus
Explanation:
Indian peacock (Pavo cristatus) is designated as the national bird of India.
A bird indigenous to the subcontinent, peacock represents the unity of vivid colors and finds references in Indian culture.
The male grows colourful feathers on tail during breeding season to impress the female birds.
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$R$ : The linking of antibiotic resistance gene with plasmid vector became possible by enzyme $DNA$ ligase.
$(a)$ 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
$R$ - The presence of introns is reminiscent of antiquity.