Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ECOLOGY--jeopardy
| Question | Answer |
|---|---|
| the greatest annual input and least seasonal variation in solar radiation occurs where? | the tropics |
| in the vicinity of the equator, air typically | rises, cools, and precipitates |
| a boreal forest in the northern hemisphere | answer |
| correctly pairs organism with location in the ocean | benthic, photic-kelp |
| a biome is characterized by | climate and predominant plant types |
| organisms that derive their energy from sunlight are | autotrophs |
| photosynthetically active radiation | includes only the solar energy with wavelengths from 400 to 700nm |
| difference between males and females rests largely on | the size and energetic cost of gametes |
| in general phenotypic variance | partitions genetic variance for necessary adaptation to the environment |
| guppies found in populations exposed to few predators are | brightly colored |
| exponential model of population growth assumes | unlimited resources |
| rather than dispersing to produce their own young bc | helpers increase their inclusive fitness and exhibit strong philopatry as high quality territories with suitable roosting cavities are limited |
| genetic differences between populations tend to be reduced by | gene flow |
| a country whose age structure diagram has a base smaller than most of the next higher level is probably | negative population growth |
| where would you most want to have a disease | in a remote, sparsely populated area |
| aposematism | poisonous snake with bold color patterns |
| in senario, wolves are an example of a | keystone species |
| first step in testing this hypothesis is | whether or not the owl eats rabbits |
| mayflies under attack by stoneflies will | typically adopt a posture which increases their apparent size so a predator will not approach them |
| which factors can stabalize pred/prey relationships with providing prey refuge | all of these are correct |
| introduce one species to a population | species richness will increase |
| carbon returns by photosynthesis and respiration | b |
| number of trophic levels in an ecosystem is limited by | the loss of energy with each transfer between trophic levels |
| the nitrogen cycle | requires different types of bacteria |
| consumer eating a producer | a transfer of chemical nutrients and energy |
| nitrogen is the main limiting nutrient | answer |
| Most amphibians and land-dwelling invertebrates are | ectotherms |
| hibernation and estivation are both examples of | torpor |
| which statements about ecology are incorrect | ecology is a discipline that is independent from natural selection and evolutionary history |
| a freshwater fish was accidentally placed in salt water. after several minutes in this saline water, it died. what is the most logical explanation for its death? | loss of water by osmosis in cells in vital organs resulting in cell death and eventually organ failure |
| generalized global air circulation and precipitation patterns are caused by | rising, warm, moist air masses cool and release precipitation as they rise and then at high altitudes, cool and sink back to the surface as dry air masses after moving north or south of the tropics |
| which of the following causes Earth's seasons | the tilt of the Earth's axis |
| true or false: ectotherms generate greater variation in internal temperature, while endotherms are active at a greater range of external temperatures | true |
| in temperate lakes, the surface water is replenished with nutrients during turnovers that occur in the | autumn and spring |
| deserts typically occur in a band at 30 degrees north and south latitude because | descending air masses tend to be cool and dry |
| true or false: convection is the transfer of heat by the movement of air or liquid past a surface, as when a breeze contributes to heat loss from a lizard's dry skin, or blood moved heat from the body core to the extremities | true |
| landscape ecology is best described as | the study of the factors controlling the exchanges of energy, materials, and organisms among ecosystem patches |
| which levels of organization is arranged in the correct sequence from most to least inclusive? | ecosystem, community, population, individual |
| which organism is NOT an ectotherm? | walrus |
| true or false: sphinx moths increase throracic temperature due to flight activity, therefore those insects can thermoregulate by transferring heat from the thorax to the abdomen | true |
| true or false: estivation is long-term torpor that is an adaptation to winter cold and food scarsity | FALSE |
| in general, a south-facing slope in the northern hemisphere is | drier and sunnier |
| plants can reduce their ________ gain by orienting their leaves parallel to the rays of the sun | Hr |
| the emission of electromagnetic waves by all objects warmer than absolute zero is called what? | radiation |
| if an organism has a surface area of 6 and volume of 1, this organism will have ______surface to volume ratio. a large organism with surface area of 384 and a volume of 512 will have _______ surface to volume ratio | 6, 0.75 |
| if the standard deviation of a population is 12, what is the population variance? | 144 |
| in a sample of 100 measurements where the standard deviation in 4, the standard error will be equal to | 0.4 |
| metabolic heat (Hm) is the heat | released during cellular respiration |
| _____________ is defined as a group of potentially breeding organisms within a species in a given space and time | population |
| true or false: hyperthermophilic bacteria are heat-loving bacteria which prefer temperatures above 90degrees C | true |
| true or false: homeotherms vary their body temperature directly with the environmental temperature | FALSE |
| ten samples were taken from normally distributed population with mean value of 77.5 and variance value of 28.09, calculate the upper and lower limits for that mean at a 95% confidence interval | 80.79, 74.21 |
| small, mobile and mostly microscopic organisms that live suspended in water are called | plankton |
| correctly paired with the components of heat gain and loss which regulate body temperature | Hs=Hm+or-Hcd+or-Hcv+or-Hr-He |
| true or false: eastern skunk cabbage stores large quantities of starch in a large root, and then translocated it to the inflorescence where it is metabolized thus generating heat 30C higher than the surrounding temperatures | true |
| determine sample mean and median from data set | 10 and 9 |
| scientific method includes | observations, experiments, and modeling, posing questions and formulating testable hypotheses, and statistical analysis |
| an ecosystem is defined as | all of the organisms that live in a area and the physical environment with which they interact |
| two woodpeckers, a rooster, 2 northern cardinals and 3 robins form your backyard will represent a bird _______ | species |
| true or false: terrestrial environments show less temperature variations than aquatic environments | FALSE |
| which aquatic environment typically experiences the least daily variation in temperature? | deep pool in a stream |
| 13.1436, 15. 4564 | answer |
| a simple tree community consists of 4 maples, 3 oaks, 1 alder. the species richness of this community is | 3 |
| principle of allocation states | if organisms use energy for one function such as growth, the amount of energy available for other functions is reduced |
| in the lotka-volterrra competition equations, the parameter alpha12 relates to | effect of species 2 on population growth rate of species 1 |
| in general population density________with increasing organism size | declines |
| a community is defined as | an association of interacting species inhabiting a defined area |
| given two habitats, habitat 1 and habitat 2, which habitat would have greater species diversity | habitat 2 |
| mycorrhizal fungi acquire _____ from their plant partners | sugars |
| crabs and shrimps associated with corals protect their hosts from | predation by sea-stars |
| the process of evolution toward niche divergence in the face of competition is called ________ | character displacement |
| if the isoclines of species 1 lies ABOVE that of species 2 | species 1 will eventually exclude species 2 |
| if site 1 had 20 species and site 2 had 10 species with 5 of the other species appearing in both sites, define species richness for site 1 | 20 |
| a species feeding on the tissue of its host, while not killing it directly is a | parasite |
| in the lotka-volterra predation model, a prey (host) population in the absence of predators would | grow exponentially |
| analysis of the lotka-volterra competition model implies that two competitors can coexist only when | intraspecific competition is stronger than interspecific competition |
| which is NOT a characteristic favored by K-selection? | many, small offspring |
| when using a significance level of 0.05, how often will you reject hypotheses that are usually correct? | 5% of the time or less |
| which statement about snowshoe hare and lynx populations in boreal canada is FALSE? | snowshoe hare rarely deplete their food supply enough to affect their population biology |
| this equation best represents change in pray numbers in predator/pray community interaction | deltaH=rH-pHP |
| statement is consistent with the principle of competitive exclusion | even a slight reproductive advantage will eventually lead to the elimination of the less well adapted of the two competing species |
| two species cannot continue to occupy the same | niche |
| imagine five forest communities, each with 100 individuals distributed among four different tree species (W,X,Y, and Z) which forest community would be most diverse? | 25W, 25X,25Y,25Z |
| why are the food chains relatively short? | longer chains are less stable and energy transfer between levels is inefficient |
| why do moderate levels of disturbance result in an increase in community diversity? | habitats are opened up for less competitive species |
| which interactions exists between a lion pride and a hyena pack? | -/- |
| why is a pathogen more virulent in a new habitat | hosts in new environments have not had a chance to become resistant to the pathogen through natural selection |
| term that's used to describe a community interaction where one organism makes the environment more suitable for another organism | facilitation |
| the energetic hypothesis and dynamic stability hypothesis are ideas that attempt to explain | the length of food chains |
| how might an ecologist test whether a species is occupying its realized or fundamental niche? | remove a competitor species to see if the species expands its range |
| this statement best describes evolutionary significance of mutualism | interaction increases the survival and reproductive rates of mutualistic species |
| which of the following describes why elephants are the keystone species in this scenario? | essentially of all the other species depend on the presence of the elephants to maintain the community |
| most significant and complete in understanding the structure of an ecological community | determining how many species are present overall, which particular species are present, the kinds of interactions that occur among organisms of different species, and the relative abundance of species |
| which of the following is an example of cryptic coloration | a "walking stick" insect that resembles a twig |
| describes the ability of a community either to resist change or to recover to its original state after change? | stability |
| the feeding relationships among the species in a community determine the community's | trophic structure |
| keystone predators can maintain species diversity in a community if they | prey on the community's dominant species |
| which of he following could qualify as a top-down control on a grassland community | effect of grazing intensity by bison on plant species diversity |
| what interactions exist between a bee and a flower? | +/+ |
| what interactions exist between mycorrhizae and evergreen tree roots | +/+ |
| what interactions exists between the cattle egret and grazing cattle? | +/0 |
| by inspecting the zero-growth isocline for species 1 estimate the value of K1 and the value of alpha | 70 and 0.64 |
| what is the projected total population size for the lions? | 1416 |
| what is the maximum number of pray that will still lead to the predator population numbers declining | 49 |
Created by:
519702138