The image depicts the variation in beak shapes of Darwin’s finches. This is a classic example of adaptive radiation.
Adaptive radiation occurs when a single ancestor species diversifies into multiple new species, each adapted to a different ecological niche.
In the case of Darwin’s finches, the ancestral finch species that colonized the Galapagos Islands diversified into various species with different beak shapes adapted to different food sources, such as insects, seeds, and fruits.
List-I (Types of adaptation) | List-II (Examples) | ||
1 | Biochemical adaptation | p | Desert lizards |
2 | Behavioural adaptation | q | Deep sea fishes |
3 | Physiological adaptation | r | Opuntia |
4 | Morphological adaptation | s | Kangaroo rats |
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector
\(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :
The output (Y) of the given logic gate is similar to the output of an/a :