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AP Biology Unit 4
Chapters 50, 51, 52, 53, 54, & 55 (Ecology)
| Question | Answer |
|---|---|
| Are water, temperature, and wind all important abiotic factors? | yes |
| What is landscape ecology best described as the study of what? | related arrays of ecosystems |
| Is ecology a discipline that is independent from natural selection and evolutionary history? | no |
| What are important biotic factors that affect the structure and organization of biological communities? | predation, competition, & disease |
| What are the biogeographic realms described by Darwin, Wallace, and others are associated with patterns of? | continental drift |
| What are zebra muscles and example of? | introduced species |
| What is one way of developing mathmatical models for distribution and abundance? | species transplants |
| What ecological relationship is least related to abiotic factors? | symbiosis |
| What is the most important factor affecting the distribution of biomes? | climate |
| As you travel to the poles what becomes the major factor is delimiting biomes? | temperature |
| Near the equator what is the major factor in delimiting biomes? | precipitation |
| What about the earth causes seasons? | the tilt of the Earth's axis |
| What is the speed in which plants extend their range northward following glacial retreat determined by? | their seed dispersal rate |
| What zone in an aquatic biome often supports communities of organisms that feed largely on detritus? | benthic zone |
| Phystoplankton is most frequently found in which zone? | photic |
| Where would an ecologst find the most phytoplankton in a lake? | limnetic zone |
| Where would you most likely to find plants known as hydrophytes? | bog |
| What does nutreint-rich agricultural run-off into freshwater ecosytems cause? | cultural eutrophication |
| Coral reefs can be found on the southern east coast of the United States but not at similar latitudes on the southern coast. Differences in what is most likely the cause for this? | ocean currents |
| In what community would organisms most likely have evolved to respond to different photperiods? | temperate forest |
| Which marine zone would have the lowest reates of primary prductivity? | abysal |
| What are tropical grasslands with scattered trees called? | savannas |
| Which type of biome would most likely occur in a climate with mild, rainy winters and hot, dry summers? | chaparral |
| Two plant species live in the same biome but in two different continents. Although these two are not at all closely related, they may appear quite similar as a result of what? | convergent evolution |
| What is an area in which different biomes grade into each other? | ecotone |
| Which biome is able to support many large animals despite recieving moderate amounts of rainfall? | savanna |
| What terrestrial biomes are adapted to frequent fires? | savanna, chaparral, and temperate grassland |
| Can fire suppresion by humans change the species compostion within biological communities? | yes |
| Most species have what sort of ranges? | small |
| A male robin attacks a red tennis ball because it confuses it with an encroaching male, and if it does not attack rival males it will lose its territory. What is that an example of? | a behvioral pattern resulting from an ultimate cause |
| During a trip to the north woods, you discover a patch of blueberries. There are not very many of them, as it is dry each year, so yu pick every one you find. The next year there are more so you only pick the best ones. What is this an example of? | optimal foraging |
| Animals tend to maximize their energy intake-to- expenditure ratio. What is this called? | optimal foraging |
| What is learning to ignore stimuli known as? | habituation |
| What can be stimulated by visual or chemical stimuli? | imprinting |
| In the territorial behavior of the stickleback fish, the red belly of one male alicits attack from another male by functioning as what? | sign stimulus |
| Mayflies laying eggs on roads instead of in water involves which of the following? | misdirected responce to sign stimulus |
| You are watching some ducks. You see a male wood duck apparently courting a different species of duck, a female mallard. What is the most likely reason for this? | the male wood duck was reared by a mallard female |
| Birds learned to peck through the paper tops of milk bottles left on doorsteps and drink the cream off the top. What type of behavior is this? | operant conditioning |
| Male insects attempt to mate with orchids but eventually stop responding to them. What type of behavior is this? | habituation |
| A returning salmon foes back to its own home stream to spawn. What type of behavior is this? | imprinting |
| A stickleback fish will atack a model fish as long as the model has red color. What type of behavior is this? | sign stimulus |
| Parental protective behavior in turkeys is triggered b the cheeping sound produced by the young. What type of behavior is this? | sign stimulus |
| Sparrows are receptive to learning songs only during a sensitive period. What type of behavior is this? | imprinting |
| What is the type of learning that causes specially trained dogs to drool when they hear a bell ring? | classical conditioning |
| Every morning at the same time John went into the den his new tropical fish. After a few weeks John noticed that the fish would rise to the top of the tank as soon as he would enter the room. This is a good example of what? | classical conditioning |
| Animals that help other animals of the same species are expect to do what? | be genetically related to the other animal |
| Fred and Joe, two unrelated, mature male gorillas, encounter one another. Fred is courting a female. Fred grunts as Joes comes near. As Joes continues to advance, Fred begins drumming and bares his teeth. At this Joe rolls on his back and leaves. This is? | agonistic behavior |
| A viologist reported that a sample of ocean water had 5 million diatoms of the species Cpscinodiscus centrans per cubic meter. Whate was the biologist measuring? | density |
| The pattern for certain species of kelp is clumped. The pattern of dispertion for a certain species of snail that lives only on this kelp would likely be what? | clumped |
| 100 butterflies are captured, marked with a small dot on a wing, and then released. The next da, another 100 butterflies are captured, including the recapture of 20 marked butterflies. What is the estimated population? | 500 |
| A table listing such items as age, observered number of organisms alive ach year, and life expectancy is known as what? | life table |
| What is the most common kind of dispersion in nature? | clumped |
| How would the dispersion of humans in the United States best be described? | clumped |
| Unlimited population growth is often prevented when death reates increase as population density increase. What is this an example of? | negative feedback |
| What is often determined by energy limitation? | carrying capacity |
| What occurs happens to population size for the phenomenon known as Allee effect to occur? | becomes too small |
| Consider several human population of equal siaze and net reproductive rate, but different in age structure. The population that is likey to grow the most during the next 30 years is the one with the greast fraction of people in what age range? | 10 to 20 years |
| What are the units of measurement used for an ecological footprint? | area of land per person |
| A biologist measures predation rates by crab spiders on flower-visiting insects in a particular field community and then experimentally removes as many spiders as she can.She discovers that predation rates remain the same but the spider begin to ambush.? | redundancy |
| A species of fish is found to require a certain temperature, a particular oxygen content of the water, a particular depth, and a rocky substrate on the bottom. What are these requirments part of? | ecological niche |
| According to the competitive exclusion principle; what two species cannot continue to occupy the same what? | niche |
| Two barnicles can both survive on the lower rocks just above the low tide line on the Scottish coast, but only one does so, the other occupies a higher zone. What is this an example of? | competitive exclusion |
| Why would an insect evolve to look like a stick? (what is it trying to avoid?) | predation |
| What is an fly that pretend to be a wasp and example of? | Batesian mimic |
| Evidence shows that some grasses benefit from being grazed. What is this an exmple of? | mutualism |
| When lichens grow on bare rock they may eventually accumlate enough organic material around them to supply the foothold for later rooted vegetation. These early pioneering lichens can be said to do what to the late arrivals? | facilitate |
| What does the species richness of a community refer to? | the number of different species |
| In a particular case of secondary succesion, three species of wild grass all invade a field the first growing season after a farmer abandoned the field. By the second season, a single one of the wild grasses dominated the field. What is a possible factor? | inhibition |
| What is the relationship existing between ants and acacia trees? | mutualism |
| What is the relationship between cattle agrets and cattle? | commensalism |
| What is the relationship existing between legumes and nitrogen-fixing bacteria? | mutualism |
| What is the succesional even in which one organsim makes the enviroment more suitable for another organism? | facilitation |
| What is the relationship between aphids and plants? | parasitism |
| A cow's herbicorous diet indicates that it is what? | primary consumer |
| All organisms capable of fixing nitrogen belong to what group? | archea |
| What are the main decomposers of an ecosystem? | fungi and plants |
| In the nitrogen cycle what bacteria replenishes the atmosphere with N2? | denitrifying bacteria |
| What are the high levels of pesticides found in birds of prey an example of? | biological magnification |