- Which of the following activities would result in a decrease in your ecological footprint?a. flying across the United States once a monthb. driving your car to and from school every day c. leaving the water running while you brush your teethd. taking a city bus instead of driving to work
- Carbon mainly cycles between the biotic and abiotic worlds through the processes ofa. cellular respiration and transpirationb. transpiration and photosynthesisc. evaporation and photosynthesisd. cellular respiration and photosynthesis
- A type I survivorship curve is associated with which of the following life history traits? a. parents providing extended care for their youngb. large numbers of offspring being produced c. infant mortality being much greater than adult mortality d. a short life span for most individuals
- A demographic tool used to predict a population's future growth is a. a type III survivorship curveb. a demographic transition modelc. age structure diagramsd. a type I survivorship curve
- Some herbivore-plant interactions evolved through a series of reciprocal evolutionary adaptations in both species. This process is called a. herbivoryb. coevolutionc. selection d. trophism
- Which of the following organisms best illustrates K-selection?a. the production of thousands of eggs every spring by frogsb. mice that produce three liters of 10-15 babies in the course of a summerc. a polar bear producing one or two cubs every three yearsd. a species of weed that quickly spreads into a region of cleared trees
- The death by bubonic plague of about one-third of Europe's population during the 14th century is a good example of a. abiotic factors limiting population sizeb. a density-dependant effectc. a density-independant effectd. carrying capacity
- An ecological footprinta. is a means of determining increases in populations that lived in the pastb. is a means of understanding resource availability and usagec. measures dispersion and adaptability d. will estimate population movements
- The maximum number of individuals a habitat can support is called its a. reproductive potentialb. carrying capacityc. community size d. density dependant factor
- Many viruses have protein fibers with a knob or spike ___________that help them _______ to a host cell
- Species in widely seperated but similiar biomes often appear to display similiar characteristics because of a. convergent evolutionb. coevolutionc. mutations c. evolutionary drift
- If most of the individuals of a human population are in their pre-reproductive years, you would expect the population size to ________ after 20 years.a. stay the sameb. increasec. decreased. decrease and then stabilize
- What is the simplest method to measure population density in a given area? a. count the number of organisms b. perform a line transectc. look for random dispersion patternsd. count the number of reproductive adults e. calculate a survivorship curve
- Many species of ants "farm" aphids, protecting them from predation and collecting concentrated sugars (i.e. honeydew) from them. This type of ant/aphid relationship is known asa. defensive mutualism b. dispersive mutualismc. parasitism d. trophic mutualism e. commensalism
- How do corals react when water temperatures are too high?a. they migrate to areas with lower water temperatures b. they slow slow down their shell-building processesc. they expel their symbiotic algaed. they reproduce in large numberse. they produce more pigment
- Most plants have a variety of chemicals, spines, and thorns because the plantsa. cannot run away from herbivoresb. feed on the organisms that try to eat them c. are camouflaged into their surroundingsd. must rely on photosynthesis for food
- A newly mated queen ant establishes an ant nest in an unoccupied patch of suitable habitat. The population of the nest grows quickly at first, then levels off at carrying capacity. Which of the following models best describes its population growth?a. linearb. logarithmic c. logistic d. exponential
- Biological diversity is composed of what three levelsa. trophic; ecosystem; and species diversityb. ecosystem;species;and process diversityc. genetic;function;and process diversityd. genetic;species; and ecosystem diversity
- In an ecosystem, you would expect to find interspecific competition between a. males and females of a species in which both sexes occupy the same nicheb.populations of two species that occupy the same nichec. a prey species and its predatord. two wasp species that mimic each other's appearance
- A community is composed of a. potentially interacting populations of different kinds of organismsb. one species of organism living in a specific environment on Earthc. living organisms and their nonliving environment d. the factors that constitute an organism's niche