1. Association of animals when both partners are benefitted?
A) colony
B) mutualism
C) ammensalism
D) commensalism
2. The relation between algae and fungi in a lichen is
A) symbiosis
B) parasitism
C) commensalism
D) protocooperation
3. Mycorrhiza exhibits the phenomenon of
A) parasitism
B) symbiosis
C) antagonism
D) endemism
4. A mutually beneficial association necessary for survival of both partners is
A) mutualism/symbiosis
B) amensalism
C) commensalism
D) both A and C
5. Which one is true?
A) commensalism when none of the interacting populations affecting each other
B)commensalism when the interaction is useful to both the populations
C)symbiosis when the interaction is useful to both the populations
D) symbiosis when neither populations affects each other.
6. Which type of association is found in between entomophilous flower and pollinating agents?
A) co-operation
B)co-evolution
C)mutualism
D)commensalism
7. Cuscuta is an example of
A) predation
B) ectoparasitism
C) brood parasitism
D) endoparasitism
8. An interspecific interaction in which one species population is inhibited typically
by toxins produced by the other which remains unaffected
A) Amensalism
B) Mutualism
C) Altruism
D) Tropism
9. A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is
A) Commensalism
B) Mutualism
C) symbiosis
D) ectoparasitism
10. The selfless behaviour of an animal for the benefit of its conspecific kins is known as
A) Promiscuity
B) Altruism
C) Co-operation
D) Cohesion
11. Select the statement which explains best parasitism.
A) One organism is benefited.
B) Both the organisms are benefited.
C) One organism is benefited, other is not affected.
D) One organism is benefited, other is affected
Answers:
1. B) mutualism
2. A) symbiosis
3. B) symbiosis
4. A) mutualism/symbiosis
5. C)symbiosis when the interaction is useful to both the population
6. B)co-evolution
7. B) ectoparasitism
8. A) Amensalism
9. A) Commensalism
10. B) Altruism
11. D) One organism is benefited, other is affected
