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Homework answers / question archive / Chapter 03 Evolution, Species Interactions, and Biological Communities Multiple Choice Questions 1)Which of the following is not a common strategy for successful intraspecific competition?   A

Chapter 03 Evolution, Species Interactions, and Biological Communities Multiple Choice Questions 1)Which of the following is not a common strategy for successful intraspecific competition?   A


Chapter 03

Evolution, Species Interactions, and Biological Communities
Multiple Choice Questions

1)Which of the following is not a common strategy for successful intraspecific competition?  
A.  eating prey before they are "ready" (ripe) for other species
B.  spreading seeds or offspring far and fast
C.  producing substances that are toxic to competitors
D.  the life cycle of dragonflies (the larva live in the water)
E.  All of these are strategies for successful interspecific competition.


2. There is/are usually _______ tolerance limit(s) responsible for limiting the number and location of a species. However, some organisms have ____________ that limit(s) their distribution. 
A. one; a specific critical factor
B. one; other environmental conditions
C. one specific; many factors
D. many; other environmental conditions
E. many; a specific critical factor




3. What would you label the range of temperature from 90°F to 94°F for this particular species? 
A. zone of intolerance
B. zone of physiological stress
C. tolerance limit range
D. optimal range
E. range of tolerance


4. What would you label the range of temperature from 95°F to 96°F for this particular species? 
A. zone of intolerance
B. tolerance limit range
C. zone of physiological stress
D. optimal range
E. range of tolerance


5. What is the difference in the adaptation of a sled dog's (such as a Husky) thick coat of hair to help it withstand the cold temperatures of Arctic winters and a dog that adapts to cold temperatures in the fall by growing a thickened coat? The adaptation of the sled dog best describes adaptation at the ____________ level while the dog exposed to seasonal colder temperatures has _____________. 
A. regional; natural selection at the individual level
B. individual; physiological modifications at the population level
C. population; physiological modifications at the individual level
D. species; natural selection at the population level
E. ecosystem; physiological modifications at the individual level



6. Evolution occurs as a result of 
A. the discovery of a desirable characteristic in a population.
B. an individual's physiological modification.
C. environmental change that forces modification in a resident species.
D. better survival or reproduction rates by individuals with a particular characteristic.
E. a population's physiological modification.


7. Natural selection will ultimately make a species 
A. more intelligent.
B. physically bigger.
C. better adapted to its environment.
D. more aggressive.
E. less vulnerable to its predators.


8. Regular lawn mowing selects for short-headed rather than tall-headed dandelions because 
A. tall flowers spread their seeds farther.
B. tall flowers cannot reproduce.
C. short flowers can reproduce.
D. short flowers spread their seeds farther.
E. short flowers have less competition when the lawn is mowed often.



9. A titmouse and a chickadee are living in the same territory and are using some of the same resources. The best way to classify this interaction is as 
A. mutualism.
B. intraspecific competition.
C. interspecific competition.
D. symbiosis.
E. commensalism.


10. An especially effective strategy for reducing intraspecific competition is 
A. different ecological niches for juveniles and adults.
B. rapid reproduction.
C. eating prey before they are "ready" (ripe) for other species.
D. resource partitioning.
E. None of these. These are examples for reducing interspecific competition.


11. Symbiosis means 
A. a relationship in which both species benefit.
B. a parasitic relationship.
C. commensalism.
D. living together.
E. a relationship in which one species benefits and the other does not benefit.



12. In the partnership of a lichen, the fungus provides _________ and the relationship is best described as _______. 
A. most of the photosynthesis; symbiosis
B. poisons that deter predation; commensalism
C. structure and moisture-holding ability; mutualism
D. very little to the algal partner; parasitism
E. some of the photosynthesis; commensalism


13. An organism's biotic potential is the maximum number of offspring 
A. that it can produce.
B. that survive to adulthood.
C. its habitat can support.
D. it produces at one time.
E. it actually produces over its lifetime.


14. A dieback, or population crash, often occurs after a species ________ its environmental carrying capacity. 
A. meets
B. overshoots
C. undershoots
D. oscillates around
E. decreases



15. In the real world, many factors determine the numbers of organisms in any one population. Yet, a SUPERFLY with unlimited food and no mortality would show what type of growth? 
A. carrying capacity geometric increase
B. irruptive growth
C. J-shaped curve
D. S-shaped curve
E. Malthusian growth


16. A biological community's productivity is a measure of 
A. its number of species.
B. the number of individuals in the community.
C. available solar energy that can be converted to biomass.
D. the amount of biomass produced in the community.
E. All of these are combined in measuring a community's productivity.


17. In a biological community where diversity is great, such as a tropical rainforest, the abundance of any one species is likely to be 
A. great.
B. small.
C. widely variable from year to year.
D. the same from year to year.
E. None of these. Abundance does not depend on diversity.



18. Complexity in an ecological community has to do with the number of 
A. species in the population.
B. species at each trophic level.
C. genetic variations within a species.
D. primary producers available.
E. primary producers relative to the number of consumers.


19. A community with hundreds of different types of primary producers, a few herbivores, and only one carnivore, has 
A. little complexity.
B. little diversity.
C. a great deal of complexity.
D. low productivity.
E. a great deal of productivity.


20. Primary succession occurs when a community develops ____________ while secondary succession occurs when one ________. 
A. into a climax community; species replaces another
B. and replaces another; ecosystem becomes stable
C. on unoccupied ground; biological community replaces another
D. and then fails; niche changes
E. intraspecific competition; experiences interspecific competition



21. Which of the following are pioneer species? 
A. wood warblers
B. dandelions
C. starlings
D. lichens
E. humans


22. As ecological development proceeds, a biological community 
A. gradually stagnates.
B. becomes more diverse.
C. goes through repeated secondary succession stages.
D. goes through repeated primary succession stages.
E. becomes less complex.


23. A climax community is one that 
A. is relatively stable and long lasting.
B. lasts forever.
C. contains oaks or white spruce.
D. is impervious to disruption.
E. is adapted to periodic disruption.



24. ___________ is the place or set of environmental conditions in which a particular organism lives. 
A. Adaptation
B. Habitat
C. Tolerance range
D. Resource partition
E. None of these are correct.


25. What term describes species which arise in non-overlapping geographic regions? 
A. intraspecific competition
B. interspecific competition
C. sympatric speciation
D. allopatric speciation
E. invasive species


26. Two unpalatable or dangerous species which have warning patterns or colors and appear similar are an example of _________________. 
A. symbiosis
B. competitive exclusion
C. mutualism
D. Batesian mimicry
E. Mullerian mimicry



27. Which of the following is not generally true of k-selected species compared to r-selected species? 
A. they have shorter generation times
B. they reach sexual maturity later
C. they have fewer young
D. they have longer life spans
E. they have slower population growth rates



True / False Questions

28. The most common reason that introduced species cause trouble is because they are larger than native species. 


29. The introduction of a predator onto an island originally free from predators is likely to cause the extinction of a native species. 


30. In general species diversity is higher near the poles than near the equator. 


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