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Environmental Science > Chapter 8 Understanding Populations > Flashcards

Chapter 8 Understanding Populations Flashcards

1
Q 
kangaroo’s role as a large herbivore on Australian grasslands
          clumped dispersion
          niche
          commensalism
          density independent
A

niche

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2
Q 
woodpeckers eating at a birdfeeder
          predation
          mutualism
          competition
          parasitism
A

competition

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3
Q 
an owl snatching a mouse from a field to eat
          predation
          competition
          parasitism
          mutualism
A

predation

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4
Q 
cause of death that does not occur more quickly in crowded populations
          clumped dispersion
          generation time
          niche
          density independent
A

density independent

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5
Q 
an orchid using a high tree branch as a place of attachment to receive more sunlight but not affecting the tree
          predation
          competition
          mutualism
          commensalism
A

commensalism

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6
Q 
all the black squirrels living in a forest
          population
          clumped dispersion
          generation time
          density independent
A

population

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7
Q 
three lampreys attached to a fish and sucking its body fluids for food
          predation
          competition
          parasitism
          commensalism
A

parasitism

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8
Q 
average age at which members of a species reproduce
          population
          generation time
          niche
          density independent
A

generation time

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9
Q 
description of a large population of geese gathered in a marsh
          population
          clumped dispersion
          niche
          density independent
A

clumped dispersion

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10
Q 
a butterfly pollinating a flower as it drinks nectar from the flower
          competition
          parasitism
          mutualism
          commensalism
A

mutualism

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11
Q 
The number of wild horses per square kilometer in a prairie is the horse population’s
          density
          dispersion
          size
          birth rate
A

density

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12
Q 
If over a long period of time each pair of adults in a population had only two offspring and the offspring lived to reproduce, the population would
          grow
          shrink
          remain the same
          disperse randomly
A

remain the same

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13
Q

Which of the following species has the highest reproductive potential?

a. rabbit
b. elephant
c. human
d. horse
A

a. rabbit

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14
Q

Which of the following is not an example of exponential growth?

a. rabbit populations after being introduced to Australia
b. reindeer of the Probilof Islands after eating most of the Lichens
c. a bank account that earns interest
d. mold appearing on bread overnight
A

b. reindeer of the Probilof Islands after eating most of the Lichens

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15
Q

The carrying capacity of an environment for a particular species at a particular time is determined by the

a. number of individuals in the species.
b. distribution of the population.
c. reproductive potential of the species.
d. supply of the most limited resources.
A

d. supply of most limited resources.

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16
Q

Competition for food cannot occur

a. between two populations.
b. among members of the same population.
c. among populations whose niches overlap.
d. between animals from two different ecosystems.
A

d. between animals from two different ecosystems

17
Q

A bird that feeds at night and a bird that feeds during the day from the same flower is an example of

a. direct competition
b. mutualism
c. indirect competition
d. indirect commensalism
A

c. indirect competition

18
Q

In which type of interaction between species does one species benefit by harming another species but not killing it?

a. predation
b. parasitism
c. mutualism
d. commensalism
A

b. parasitism

19
Q

Which of the following examples would be least likely to be considered a symbiotic interaction?

a. A wren builds a nest in a cactus.
b. A yucca moth pollinates and lays eggs on yucca flowers.
c. A kit fox hunts and feeds on a kangaroo rat.
d. Bacteria in a fox’s digestive system help it digest food.
A

c. A kit fox hunts and feeds on a kangaroo rat

20
Q

Which of the following two species represent a relation-ship that has coevolved?

a. flowering plants and their pollinators
b. foxes and their coyote competitors
c. house cats and their prey
d. rabbits and their relatives
A

a. flowering plants and their pollinators

Environmental Science (11 decks)

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