Title: Unit 4 Quiz - Jose
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

Q: The combination of all the abiotic and biotic factors that may limit population increase is called
- environmental resistance
- critical number
- population equilibrium
- carrying capacity
- recruitment
A: environmental resistance

Q: The carrying capacity is the ________.
- greatest number of niches possible in a given area
- average number of viable offspring produced within a population
- maximum population size that a given environment can sustain
- potential number of species in a given area
- maximum reproductive potential of an individual of a particular species
A: maximum population size that a given environment can sustain

Q: A study of deer in Northern Ontario suggests that the deer population follows a twelve-year cycle. What conclusions can be made about the wolf population over the same period?

Q: High population density can ______.
- decrease competition
- prevent organisms from finding a mate
- increase the incidence of disease transmission
- decrease resource use
- decrease biodiversity within a species
A: increase the incidence of disease transmission

Q: Which of the following would reflect a clumped population distribution?
- bald eagles nested in tall trees
- school of yellowfin tuna in the ocean
- a forest of maple trees
- earthworms in your garden soil
- oaks planted along city streets
A: school of yellowfin tuna in the ocean

Q: Which of the following limiting factors is NOT a component of environmental resistance?
- availability of raw materials
- accumulation of waste products
- availability of energy
- organismal biotic potential
- all of these are correct
A: organismal biotic potential

Q: Explain exponential and logistic population growth. Give examples of conditions under which they occur.

Q: Which of the following are characteristics of K-selected species?
- reproduce early in life, short-lived, rapidly dispersing
- small size, reproduce early in life
- no parental care, high mortality of juveniles
- chaotically fluctuating population size, close to carrying capacity
- ong-lived, large size, small numbers of offspring
A: ong-lived, large size, small numbers of offspring

Q: The number of offspring that can be produced in a population under ideal conditions is defined as
- recruitment
- population explosion
- carrying capacity
- biotic potential
- replacement fertility
A: biotic potential

Q: A population is ________.
- a group of interacting species that inhabit various ecosystems
- a group of individuals of a single species inhabiting a particular area
- the number of species that live in a particular area
- (birth rate + immigration rate) - (death + emigration rate)
- a group of individuals of interacting different species that live in a particular area
A: a group of individuals of a single species inhabiting a particular area

Q: Which of the following gives the major factors that determine a population's growth rate?
- adaptation, competition, birth rate, emigration
- birth rate, death rate, emigration, immigration
- Immigration, climate, emigration, population distribution
- limiting factors, carrying capacity, mutation rate, inbreeding
- survivorship, natural selection, mutation, extinction
A: birth rate, death rate, emigration, immigration

Q: A population pyramid showing rapid growth
- has a narrow base, and bulges as it extends upward
- shows an even age distribution for many decades
- narrows steadily from its base upward
- has a broad base and curves sharply upward
- has a narrow base and gradually widens
A: has a broad base and curves sharply upward

Q: Which of the following pairs contains first an r-selected species, followed by a K-selected species?
- gorilla; whale
- whale; grasshopper
- dandelion; pine tree
- grasshopper; whale
- pine tree; dandelion
A: grasshopper; whale

Q: A school of fish in the ocean is best described as a ________ population distribution.
- dispersal
- uniform
- random
- clumped
- spatial
A: clumped

Q: The number of individuals of a species in a given unit area (for example the number of rabbits per hectare) is called
- critical number
- carrying capacity
- population density
- population distribution
- immigration
A: population density

Q: Which survivorship curve would you classify a fish that produces thousands of offspring when it spawns?
- Type I
- Type II
- Type III
- Type IV
A: Type III

Q: Unregulated populations tend to increase by ________.
- emigration
- immigration
- linear growth
- exponential growth
- logistic growth
A: exponential growth