Title: Unit 6 Quiz
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

Q: Biodiversity includes
- the distribution of species in different populations.
- the diversity of species in a given area.
- the genetic diversity within individual populations.
- All of the above are correct.
- None of the above are correct.
A: All of the above are correct.

Q: Describe an example of how humans have used biomimicry.

Q: Which of the following interactions can correctly be labeled coevolution?
- the ability of garter snakes to eat poisonous newts
- the adaptation of cockroaches to human habitation
- a genetic change in foxes that allows them to tolerate human presence (and food)
- the tendency of coyotes to respond to human habitat encroachment by including pet dogs and cats in their diets
- the ability of rats to survive in a variety of novel environments
A: the ability of garter snakes to eat poisonous newts

Q: In general species diversity is higher near the poles than near the equator.
- True
- False
A: False

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

Q: Members of a population engage in intraspecific competition which is a major factor in limiting both reproduction and survivorship.
- True
- False
A: True

Q: A species introduced into an area from somewhere else which competes and crowds out native species is called a:
- umbrella species
- invasive species
- threatened species
- endangered species
- keystone species
A: invasive species

Q: Introduced species typically cause problems in an environment because they are larger than the native species.
- True
- False
A: False

Q: In kelp forests, sea otters control the population of sea urchins, who feed on kelp. In areas where sea otters have been extirpated, the kelp forests have been depleted as well. The sea otter is most likely a (n) [_____] species.
A: keystone

Q: The greatest loss of biodiversity in the last two centuries has resulted from
- the use of fossil fuels to power transportation and electrical production.
- the introduction of alien species to new ecosystems.
- the physical alteration of habitats.
- the use of rivers, lakes, and oceans for transportation.
- improper waste disposal.
A: the physical alteration of habitats.

Q: [_____] is a relationship in which one species benefits and the other is not impacted.
A: Commensalism

Q: By definition, parasites ________ their host.
- kill
- never kill
- feed on and harm
- cannot live independently of
- are much smaller than
A: feed on and harm

Q: Which of the following is a pioneer species?
- humans
- house sparrow
- dandelion
- white pine tree
- lichens
A: lichens

Q: Converting a prairie to a farm field is an example of ________.
- exotic species
- habitat loss
- overharvesting
- climate change
- climax community
A: habitat loss

Q: Succession that begins with an abandoned field is an example of primary succession.
- True
- False
A: False

Q: When two organisms attempt to utilize the same resource, the result is:
- competition
- parasitism
- mutualism
- symbiosis
- commensalism
A: competition

Q: Secondary succession ________.
- occurs immediately after primary succession
- always ends in the formation of a climax community
- occurs after a major disturbance such as a fire or flood
- results after a volcanic island is formed
- typically begins with lichen colonizing rocks
A: occurs after a major disturbance such as a fire or flood

Q: A number of nonrelated, different kinds of stinging wasps have black-and-yellow striped abdomens and similar behavior. This is an example of
- commensalism
- mimicry
- parasitism
- cryptic coloration
- intraspecific competition
A: mimicry

Q: Yucca moths are essential for pollinating yucca flowers; the flowers provide an important foodsource for the moths. This demonstrates ________.
- competition
- predation
- parasitism
- succession
- mutualism
A: mutualism