Flashcards in Chapter 8 Understanding Populations Deck (20)
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1
kangaroo’s role as a large herbivore on Australian grasslands
clumped dispersion
niche
commensalism
density independent
niche
2
woodpeckers eating at a birdfeeder
predation
mutualism
competition
parasitism
competition
3
an owl snatching a mouse from a field to eat
predation
competition
parasitism
mutualism
predation
4
cause of death that does not occur more quickly in crowded populations
clumped dispersion
generation time
niche
density independent
density independent
5
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
commensalism
6
all the black squirrels living in a forest
population
clumped dispersion
generation time
density independent
population
7
three lampreys attached to a fish and sucking its body fluids for food
predation
competition
parasitism
commensalism
parasitism
8
average age at which members of a species reproduce
population
generation time
niche
density independent
generation time
9
description of a large population of geese gathered in a marsh
population
clumped dispersion
niche
density independent
clumped dispersion
10
a butterfly pollinating a flower as it drinks nectar from the flower
competition
parasitism
mutualism
commensalism
mutualism
11
The number of wild horses per square kilometer in a prairie is the horse population’s
density
dispersion
size
birth rate
density
12
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
remain the same
13
Which of the following species has the highest reproductive potential?
a. rabbit
b. elephant
c. human
d. horse
a. rabbit
14
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
b. reindeer of the Probilof Islands after eating most of the Lichens
15
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.
d. supply of most limited resources.
16
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.
d. between animals from two different ecosystems
17
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
c. indirect competition
18
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
b. parasitism
19
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.
c. A kit fox hunts and feeds on a kangaroo rat
20
