Ecology Review Page 1

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1 Ecology Review Page 1 1 Which of these is a biotic component of your environment? light the availability of water bacteria on the surface of your skin the mineral supplements you consume 2 What are the two major factors determining the distribution of terrestrial biomes? light and rainfall plants and animals temperature and light temperature and rainfall 3 Which of the following biomes is correctly paired with the description of its climate? tropical forests - nearly constant day length and temperature savanna - cool temperature, precipitation uniform during the year temperate grasslands - relatively warm winters, most rainfall in summer temperate broadleaf forest - relatively short growing season, mild winters 4 Which series of terms is in the sequence of biological organization from the simplest to the most complex? molecule, tissue, cell, organelle, organ population, community, ecosystem, biosphere community, population, ecosystem, habitat, biosphere organism, ecosystem, community, population, biosphere 5 Earth's biosphere is not completely self-contained (or closed) because humans pollute the atmosphere and bodies of water. bacteria that live on snowy mountains receive nutrients blown to them by winds. the precipitation that falls on the interior of western North merica is derived from the Pacific Ocean. plants, algae, and photosynthetic bacteria obtain energy from sunlight, and heat escapes from the biosphere into space. 5/3/2013 7:24:27 M

2 Ecology Review Page 2 6 The saguaro cactus of the merican southwest and the euphorbia of Zimbabwe are not closely related but appear similar. ifferent species that inhabit the same type of biome, but occur in widely separated geographic regions, often appear similar due to chance. convergent evolution. their close evolutionary relationships. the occurrence of the same sets of species within a biome. 7 Which of the following is an example of a taxis? a wasp locating its nest with landmarks pulling your hand away from a hot stove a fish orienting itself into the river current a crow dropping a whelk from a specific height 8 kinesis differs from a taxis in that a kinesis is whereas a taxis is. innate... learned proximate... ultimate a response to chemicals... a response to light a change in activity... a directional response to stimulus 9 In, an animal learns to associate one of its behaviors with reward or punishment. imprinting habituation operant conditioning classical conditioning 5/3/2013 7:24:27 M

3 Ecology Review Page 3 10 This image shows the survivorship curve for our species. Which of these organisms has a survivorship curve similar to that of humans? cats robins grasses elephants 11 To calculate the human population density of Overland Park, you need to know the number of people living there and the carrying capacity. the birth rate of the population. the dispersion pattern of the population. the overall size of the city of Overland Park. 12 Herring gulls fiercely defend the areas around their nests in cliff-top breeding colonies. Within the colony they would show a dispersion pattern. dense random uniform clumped 13 Which of the following describes the distribution of survivorship or mortality for a population that has a Type II survivorship curve? Little death occurs until late in life. Survivorship is greatest in younger individuals. The chance of death is roughly constant over all ages. Survivorship is greatest in individuals that are intermediate in age. 14 population will always grow exponentially if it shows logistic growth. if there are no limiting factors. until it reaches carrying capacity. if it is limited only by density-dependent factors. 5/3/2013 7:24:27 M

4 Ecology Review Page 4 15 population that is growing logistically grows fastest when density is lowest. is always slowed by density-independent factors. grows fastest as it approaches carrying capacity. grows fastest at an intermediate population density. 16 n egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal? predation mutualism parasitism commensalism 17 human who just ate a hamburger is eaten by a shark while swimming. The shark is acting as a producer primary consumer tertiary consumer secondary consumer 18 Which of these is a starting point for primary succession? a neglected yard abandoned farmland a surface exposed by a retreating glacier a forest after a meteorite impact wipes out all plant life 19 The competitive exclusion principle states that species that compete usually coevolve. two species cannot coexist in the same habitat. two species with the exact same niche cannot coexist in a community. competition between two species always causes extinction or emigration of one species. 20 is the increase in pesticide concentration as the pesticides pass up a food chain. iodiversity Precipitation Eutrophication iomagnification 5/3/2013 7:24:27 M

5 Ecology Review Page 5 nswer Key : Ecology Review Question: nswer 5/3/2013 7:24:27 M