Question

45. Which of the following is NOT an indicator of biodiversity? A the number of species in a habitat c. the number of individuals in a population B. the number of alleles in a population D. the number of dient habitat types in an area one of these 46. Which species turned Guam into a silent island, devoid of birdcalls? A. the brown treenake B. European rabbits c. the cane toad 47. What type of mimicry is shown in the image on the right, in which the harukmoth caterpillar mimics a snake A Batesian mimicry C Mullerian mimicry Robertsonian mimicry D. Darwinian mimicry 48. What type of mimicry might be on display when a harmless fly mimics a wasp? A Balesian mimicry C Müllerian mimicry B. Robertsonian mimicry D. Darwinian mimicry 49. What type of defense mechanism is shown in the image on the right, in which starlings moba sowy wl? A structural defense C hehavioral defense B. chemical defense D. specialized defense 50. In terms of defense against predators, the quills are to the porcupine as is to the skunk A. fur Codor B. fur color D, speed 51. What is the difference between Batesian and Mullerin mimicry? A in Halesian mimicry, a harmful organism mimics a Parmless coe. B. In Müllerian mimicry, a harmless organism mimics a harmful one C. In Möllerian mimicry, harmful organisms mimic one another D. There is no clear difference 52. In an experiment a population of coyotes was removed from a mountain valley in the western United States. Ata control site in a nearby valley, the population of both coyotes and their rodent prey was carefully monitored. After a few years, the number of rodents in the valley where the coyotes had been removed, had increased considerably, but there were fewer species represented. In the control and the number of rodents and their diversity had remained the same as before. What could be the cause of this result? A Coyotes at different numbers of different rodent species R. The coyotes were a keystone predator in the valley, and their presence maintains rodent diversity C Covotes had nothing to do with the result, since rodent migrations caused the changes D none of the above mice and 30% birds. Which predator species is the cases whose 51 Assume that the predators in a community consist of foxes whose diet is 80% mice and 2016 dict is 5096 mice and 50% birds, and bobcats whose dictis 20% mice and 80% birds. Which most likely to disappear from the community as a result of competition from the other two B. the foxes A the weasels C the bobcats D. D none of these The flower fly resembles a honeybee, but the flower fly has no stinger. This is an example of Müllerian mimicry C wan B. Mullerian mimicry c A Batesian mimicry waming coloration D. cryptic coloration J ack wasp. Both of these insects have stingers used in defense. The best term to Mollerian mimicry C. Warning coloration D. cryptie coloration A Batesian mimicry 55. The cuckoo bee resembles a yellowjacket wasp. Both of describe how these two phenotypes are related is

Answer 1

45)C

Indicators of biodiversity are 1)species richness in an area 2) genetic diversity within species 3) presence of endemic species & 4) different ecosystems in the area

46) A

The introduction of the invasive brown tree snake after World war had a negative impact on the native animal species including birds.

47)A

In Batesian mimicry, a palatable species imitates a harmful species to ward off predators.

48)A

49) C

50)C

Skunk uses noxious chemicals to ward off predators.

51)C

52)B

Keystone species are usually dominant predator whose removal leads drastic increase in their population. However the diversity of the prey population decreases.

53)A

Weasels face competition from fox for mice & from bob cats for birds

54)A

55)B

52)