Title: Unit 6 Quiz
Course: BIS 205 Field Ecology - Copy > Section: BIS 205 Field Ecology - Copy

Q: An annual plant encounters a new area and begins colonizing it. Initially it will likely demonstrate
- geometric growth
- exponential growth
- logistic growth
- arithmetic growth
- carrying capacity
A: geometric growth

Q: The factors that determine carrying capacity include all of the following except:
- disease
- food
- space
- competition
- none of the above choices are correct
A: none of the above choices are correct

Q: The study of the relationship between climate and the timing of ecological events is called
- ecology
- phenology
- climatology
- taxonomy
- life history theory
A: phenology

Q: Density dependent factors include all of the following except:
- predation
- competition
- disease
- climate
- none of the above are correct
A: climate

Q: Seeds with an eliasome are most likely to be dispersed by
- wind
- ants
- bees
- mice
- birds
A: ants

Q: What is a forb?
- an herbaceous, nongraminoid plant
- a sedge or grass
- a fish that provides no parental care
- an insect that disperses plant seeds
- an altricial bird species
A: an herbaceous, nongraminoid plant

Q: In the logistic model of population growth if N>K then
- r is zero
- r is negative
- the population increases
- the population decreases
- density-dependent factors are unimportant
A: the population decreases

Q: On a global scale human beings are clumped with the greatest abundance found in
- North America
- South America
- Africa
- Europe
- Asia
A: Asia

Q: In a K-selected species, the K represents
- fecundity
- age at reproductive maturity
- carrying capacity in the logistic equation
- gonadosomatic index
- none of the above
A: carrying capacity in the logistic equation

Q: Logistic growth produces a ______ population growth curve.
- J-shaped
- N-shaped
- S-shaped
- K-shaped
- r-shaped
A: S-shaped

Q: If the initial population of the annual plant Phlox drummondii is 996, calculate the size of the population after 4 years if the geometric rate of increase is 2.4177.  Round your answer to the nearest whole number.
A: 34029.9 / 34030.9

Q: The equation N_t = N_0 λ^t represents what type of population growth?
- exponential growth
- geometric growth
- logistic growth
- arithmetic growth
- sigmoidal growth
A: geometric growth

Q: The following equation, best represents
- exponential growth
- geometric growth
- logistic growth
- arithmetic growth
- none of the above
A: logistic growth

Q: The population pyramid displayed below illustrates a population that is likely to
- declining slowly
- stable
- growing slowly
- growing rapidly
- cannot determine from this information
A: growing rapidly

Q: [_____] is a measure of reproductive effort calculated by dividing the ovary mass by body mass.
A: Gonadosomatic index

Q: Organisms that only reproduce once during their lifetime are labeled as ______, while species that have multiple reproductive periods during their life are known as _______.
- graminoids, forbs
- iteroparous, semelparous
- semelparous, ruderals
- semelparous, iteroparous
- eliasomes, arils
A: semelparous, iteroparous

Q: A species that spends large amounts of energy providing care for their young would most likely follow which survivorship curve?
- Type I
- Type II
- Type III
- None of the above
A: Type I

Q: Due to limited energy and resources, describe at least 3 trade-offs organisms face with deciding how to allocate energy.