Biology Questions and Answers for Competitive Exam

Selective Biology Questions and Answers:

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11. The richest source of fossils is

(a) basalt

(b) granite

(c) lava

(d) sedimentary rock

12. Biologists who study the sequences of organisms in the fossil record are

(a) taxonomists

(b) palaeobiologists

(c) misologists

(d) systematists

13. Which were dominant in Mesozoic?

(a) Dinosaurs

(b) Gymnosperms

(c) Fishes

(d) Mammals

14. The “Golden age of Reptiles” was

(a) Late Paleozoic

(b) Cenozoic

(c) Mesozoic

(d) Proterozoic

15. The fossil remains of Archaeopteryx is a connecting link between

(a) amphibians

(b) reptiles and birds

(c) fish and amphibians

(d) reptiles and mammals

16. Which of the following set is the evidence of evolution?

(a) Homologous and vestigial organs

(b) Analogous and vestigial organs

(c) Homologous and analogous organs

(d) All of the above

17. Of the following anatomical structures, which is homologous to the wing of a bat?

(a) The arm of a human

(b) The wing of a butterfly

(c) The tail of a fish

(d) The dorsal fin of a shark

18. Which one of the following sets of structures includes only analogous organs?

(a) Wings of butterfly, housefly and bat

(b) Hind legs of horse

(c) Hands of man, monkey and kangaroo

(d) Mandibles of cockroach, mosquito and honeybee

19. Which of the following set represents all vestigial structures in the human body?

(a) Vermiform appendix, body hair and cochlea

(b) Wisdom teeth, coccyx and patella

(c) Coccyx, vermiform appendix and muscles of ear pinna

(d) Body hair, muscles of ear pinna and atlas vertebra

20. The earliest animal to have been domesticated by man most likely the

(a) horse

(b) pig

(c) dog

(d) cow

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