AP Biology Ecology Quiz 1
This quiz will test your knowledge of chapters 50-53.
- 1.Discuss the flow of energy through a food web. Include the recycling of energy. (20 points)
- 2.In an energy pyramid, how much energy is transferred from one level to the next as you move from the bottom of the pyramid to the top?
- A.
All of it
- B.
10%
- C.
50%
- D.
90%
- 3.Which statement about dispersal is false?
- A.
Dispersal is a common component of the life cycles of plants and animals.
- B.
Colonization of devastated areas after floods or volcanic eruptions depends on dispersal.
- C.
Dispersal occurs only on an evolutionary time scale.
- D.
Seeds are important dispersal stages in the life cycles of most flowering plants.
- 4.Which of the following statements provides an ultimate explanation for the observation that adult salmon return from the ocean to spawn in the stream in which they hatched?
- A.
Young salmon imprint on the chemical scent of their home stream.
- B.
Adult salmon use stellar navigation to relocate their home stream.
- C.
Spawning in the home stream results in higher survival of young salmon.
- D.
Oceanic currents aid salmon in their search for their home stream.
- 5.Pavlov's dogs learned to associate hearing a bell with food. Simply hearing a bell caused them to salivate. This is an example of
- A.
Habituation
- B.
Operant conditioning
- C.
Classical conditioning
- D.
Imprinting
- 6.A sign stimulus that functions as a signal to trigger a certain behavior in another member of the same species is called
- A.
A ritual
- B.
A fixed action stimulus
- C.
An inducer
- D.
A releaser
- 7.To begin the mating dance, the male ostrich moves his head in a particular bobbing fashion. This initiates a specific response from the female, and the ritualized mating dance can begin. The male head bobbing is
- A.
A ritual
- B.
A fixed action stimulus
- C.
An imprinting stimulus
- D.
A releaser
- 8.Which of the following is related to altruistic behavior?
- A.
Kin selection
- B.
Fixed action pattern
- C.
A search image
- D.
Imprinting
- 9.Which of the following is true of innate behaviors?
- A.
Genes have very little influence on the expression of innate behaviors.
- B.
Innate behaviors tend to vary considerably among members of a population.
- C.
Innate behaviors are limited to invertebrate animals.
- D.
Innate behaviors are expressed in most individuals in a population across a wide range of environmental conditions.
- 10.The observation that members of a population are uniformly distributed suggests that
- A.
The size of the area occupied by the population is increasing.
- B.
Resources are distributed unevenly.
- C.
The members of the population are competing for access to a resource.
- D.
The members of the population are neither attracted to nor repelled by one another.
- 11.Which pair of terms most accurately describes life-history traits for a stable population of wolves?
- A.
Semelparous; r-selected
- B.
Semelparous; K-selected
- C.
Iteroparous; r-selected
- D.
Iteroparous; K-selected
- 12.A population's carrying capacity
- A.
Increases as the per capita growth rate (r) decreases
- B.
May change as environmental conditions change
- C.
Can never be exceeded
- D.
Generally remains constant over time
- 13.
Which of these types would indicate a K-strategist?- A.
Type I (humans)
- B.
Type II (songbirds)
- C.
Type III (frog)
- D.
None of the above
- 14.
Which of these types would indicate a r-strategist?
- A.
Type I (humans)
- B.
Type II (songbirds)
- C.
Type III (frog)
- D.
None of the above
- 15.The feeding relationships among the species in a community determine the community's
- A.
Secondary succession
- B.
Ecological niche
- C.
Trophic structure
- D.
Species-area curve
- 16.The competitive exclusion principle states that
- A.
Two species cannot coexist in the same habitat
- B.
Competition between two species always causes extinction or emigration of one species
- C.
Competition in a population promotes survival of the best-adapted individuals
- D.
Two species with the exact same niche cannot coexist in a community
- 17.Which of the following could qualify as a top-down control on a grassland community?
- A.
Limitation of plant biomass by rainfall amount
- B.
Influence of termperature on competition among plants
- C.
Influence of soil nutrients on the abundance of grasses versus wildflowers
- D.
Effect of grazing intensity by bison on plant species diversity
- 18.Which of the following best explains why there are usually no more than five trophic levels in a food chain?
- A.
There are not enough organisms to fill more than five levels.
- B.
There is too much competition among the organisms at the lower levels to support more animals at higher levels.
- C.
Energy is lost at each trophic level.
- D.
The statement is not true; there can be unlimited trophic levels.
- 19.
In this depiction of a terrestrial food web, which letter would represent a producer?
- A.
Z
- B.
T
- C.
S
- D.
V
- 20.
In this depiction of a terrestrial food web, which letter would represent the species with the smallest biomass?
- A.
Z
- B.
T
- C.
S
- D.
V
- 21.Many poisonous animals are brightly colored (red or orange) as a warning to predators. This special coloration is called
- A.
Mullerian mimicry
- B.
Batesian mimicry
- C.
Aposematic coloration
- D.
Mutualistic coloration
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