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30. In ecotone, some species become abundant and they are called (A) sibling species (B) endemic species (C) rare species (D) edge species Species That Become Abundant in an Ecotone […]

29. Radial symmetry is the characteristic feature of which of the following phyla? (A) Arthropoda (B) Mollusca (C) Cnidaria (D) Chordata Radial Symmetry Is the Characteristic Feature of Phylum Cnidaria […]

28. Which of the following is NOT an example of an adaptive defense mechanism against predation? (A) Bright colors of bird pollinated flower (B) Insect that resembles a stick (C) […]

27. The natural geographical distribution of kangaroos is limited to the Australian continent because (A) abiotic factors determine the distribution (B) dispersal is limited by accessibility to other continents (C) […]

26. Pyramid of energy in a forest ecosystem is (A) always inverted. (B) dumb-bell shaped. (C) spindle shaped. (D) always upright. Pyramid of Energy in a Forest Ecosystem Is Always […]

25. The evolution of eyes in octopus and in human is an example of . (A) divergent evolution (B) convergent evolution (C) adaptive radiation (D) genetic drift Evolution of Eyes […]

24. In a sampling expedition near a peninsula, 180 dolphins from a large population of dolphins were captured and marked by tagging their dorsal fins. The tagged dolphins were then […]

23. A forest has four different tree species (A,B,C and D) and their numbers are: A = 60; B = 20; C = 10 and D = 10. The Shannon […]

22. Identify the taxa that constitute a paraphyletic group in the given phylogenetic tree? (A) A,B,C (B) D,E,F (C) B,C,D (D) C,D,E Paraphyletic Group in a Phylogenetic Tree: Identifying the […]

21. Match the pair of organisms in Group I with their community interaction pattern in Group II. Group I Group II P. Cattle egrets – African buffalo 1. Competition Q. […]