Match List I with List II
List I (Term) List II (Definition) A. Sympatric
speciation I. The process by which organisms adapt to changed environmental conditions to form new species in
a relatively short period.B. Parapatric
speciationII. The process of differentiation and acquiring reproductive isolation within the same geographical
area.C. Adaptive
radiationIII. Population evolving in different geographical regions due to isolation. D. Allopatric
speciationIV. The process of speciation which occurs between adjacent populations within a broadly continuous
habitat.
Choose the correct answer from the options given below:
a-ii, b-iv, c-i, d-iii
Speciation Matching: Terms and Definitions
A. Sympatric Speciation (II)
Definition II describes speciation occurring within the same geographical area and acquiring reproductive isolation. This matches Sympatric speciation.
B. Parapatric Speciation (IV)
Definition IV relates to speciation between adjacent populations within a broadly continuous habitat. This matches Parapatric speciation.
C. Adaptive Radiation (I)
Definition I describes organisms adapting to changed environments to form new species quickly. This matches Adaptive radiation.
D. Allopatric Speciation (III)
Definition III involves populations evolving in different geographical regions due to isolation. This matches Allopatric speciation.
Correct Option
The correct matching is A-II, B-IV, C-I, D-III. This corresponds to Option 2.
Important Questions from Evolutionary Mechanisms
The frequency of homozygotes in a diploid population is 0.68. Assuming that the population is in Hardy-Weinberg equilibrium, the frequencies of the two alleles are
Convergent evolution creates:
Given below are the possible reasons of high probability for extinction of species:
(i) Increased homozygosity of alleles
(ii) Increased heterozygosity of alleles
(iii) Decreasing population sizes
(iv) Increasing demographic stochasticity
(v) Decreasing environmental stochasticity
Which one of the following options represents the correct combination of reasons that can lead to the highest probability of extinction of species?
Given below are proposed analogous structures among organisms.
A. wings of birds and bats
B. wings of bats and tetrapod digits
C. tendrils of Vitis and tendrils of pumpkin
D. tubers of potatoes and sweet potatoes
E. fins of fish and flippers of a whale
Which one of the following options correctly states the analogous structures?
According to Hamilton's rule, 'r' is the coefficient of relatedness between two interacting individuals, 'B' is the benefit to thr recipient and 'C' is the cost to the donor. Which of the following relationships will result in an altruistic behaviour?
