SPECIES & POPULATION

SPECIES & POPULATION

1. The occurrence of two forms among the organisms of same species is known as

a. Polymorphism b. Trimorphism c. Metamorphosis

2. A polygamous animal is

a. Rat b. Wolf c. Deer d. Fox

3. Family, herd & tribe organisations are units

a. Subordinate in rank to local population b. Higher in rank than a population

c. higher in rank than a species d. Intermediate between local population and species

4. The larval stage of Salamander which can take part in reproduction is known as

a. Tadpole b. Axolotl larva c. Maggot d. Caterpillar

5. Hinny is derived from

a. Male donkey and mare b. Lion and tigress c. Tiger and lioness

d. Stallion and female donkey

6. When is man a part of biotic community?

a. Always b. Only when lives in big cities c. Only when he lives in a forest d Never

7. A developing country is

a. U.S.A. b. Japan c. India d. France

8. Worker termites are

a. Adolescent b. Adult male c. Adult female d. Larva

9. Territory is defended against

a. Predator b. Any intruder c. Intruder of another species

d. Intruder of the same species

10. Sympatric speciation is due to

a. Migration b. geographical isolation c. Reproductive isolation d. Isolation

11. Polymorphic animals are

a. Honey bees b. Physalia c. Obelia d. All the above

12. Parental care is shown by

a. Cyclops (water flea) b. Surinam toad c. Hippocampus (sea horse)

13. Waggle dance in honey been is an example of

a. communication b. Cooperation c. Competition d. None of these

14. Which of these helps in the survival of a species?

a. Group formation b. Maintenance of territory c. Communication

d. All of these

15. The effect of inter specific competition on niches is to make them

a. Smaller b. Larger c . Change location d. More triangular

16. Logistic growth occurs when there is

a. Asexual reproduction only b. Sexual reproduction only

c. No inhibition from crowding d. A fixed carrying capacity

17. The growth of human population is most rapid in

a. temperate regions b. Asia c. Tropical and subtropical regions d. North America

18. Rats are

a.Monogamous b. Bigamous c. Polygamous d. Do not have fixed partners

19. If an animal population becomes too large for its feeding source or its habitat its members

starve and die but humans escape this disaster by

a. Immigration only b. Emmigration only

c. Transportation of food only d. Both emigration and transportion of food

20. Large gap between birth and death rates will result in

a. More old persons b. Low rate of fertility c. More school going children

d. low dependency ratio

21. Population whose members reproduce asexually is called

a. Penmictic b. Species c. Amphimictic d. Apomictic

22. Which among the following does not lead a monogamous life

a. Seal b. Fox c. Swan d. Wolf

23. The population of an area tends to decrease by

a. Migration b. mortality c. immigration d. None of these

24. Most densely populated country in world is

a. India b. Japan c. Bangladesh d. Nepal

25. Most thinly populated state in India is

a. Sikkim b. Himachalpradesh c. Rajasthan d. Arunanchalpradesh


ANSWERS

1. c 2. c 3. a 4. b 5. d 6. a 7. c 8. a 9. d 10. c

11. d 12. d 13. a 14. d 15. a 16. d 17. c 18. d 19. d 20. a

21. c 22. a 23. b 24. c 25. d