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apes unit 3 test
| term | answer |
|---|---|
| sustainable development refers to | an improvement in living conditions through use of resources without causing environmental harm or depletion of resources |
| a species that plays a major role in determining the structure of its ecological community is | a keystone species |
| suppose a nation has a crude death rate of 10 deaths, birth of 20, immigration of 5, and emigration of 0, what is national population growth rate | 1.5 percent |
| which best explains the high rate of human population growth in the last 8,000 years | technology has allowed the species to increase Earth's carrying capacity |
| which factor is not likely to affect the country's population over time | the current carrying capacity |
| which is not an example of two organisms in a mutualistic relationship | humans and the protozoa that cause malaria |
| during a single oregon winter, minimum temperatures did not get much below freezing. . What best explains this pattern in the mosquito population? | density independent factors |
| what is the study of factors that cause populations to increase or decrease | population ecology |
| if a population of 100 birds increases to 120 birds in a year, what is its rate of growth | 0.20 |
| human population growth has increased dramatically in the last 100 years because of | modern medicine |
| to determine the number of individuals that will be added to a population in a specified time we multiply the growth rate by what | original population size |
| tapeworms in the human gut are an example of | parasites |
| following the exponential growth stage of gause's experiment, graph would display a what curve as the population approaches what | S; carrying capacity |
| a population of rabbits introduced to an island, has rapid growth for a few years and then slows. what is a likely reason for this pattern | the carrying capacity has been reached. |
| there are roughly 42 million ducks and 120,000 lakes in the continental united states. how many ducks per lake are there | 3.5 per 102 |
| which is not likely to limit a populations size | the genetic diversity of the population |
| the per capita ecological footprint provides demographers with a way to measure | the amount of land required to support each person |
| approximately what percentage of people in developed countries live in urban areas | 75 |
| the crude birth rate of a population is expressed as a what | ratio |
| country A has higher crude death rate and higher standard of living, explain | country A has an older population |
| which of the following compares growth patterns with eagles and bacteria | under ideal conditions, bacteria and eagle populations both grow explonentially |
| some species mimic the coloring of similar species that are toxic. the mimic species do what | adopt the appearance of the toxic species as a morphological defense |
| what has kept the world population out of food deficit | innovations in agricultural practices |
| population size N of kenyan lions is | the estimated number of lions in kenya during the time of measurement |
| a population of bacteria in a petri dish grows exponentially with a starting population of 200, increasing 10 percent every hour. how long will it take to reach 400 | 7 hours |
| achieving economic and environmental sustainability around the world is difficult because | I, II, and III |
| in general, what is the relationship between life expectancy, child mortality, and affluence | life expectancy is directly proportional to affluence, while child mortality is inversely proportional to affluence |
| which behavioral response to the threat of predation is most likely to be selected for in a species that uses camouflage for protection | a motionless behavior |
| which is most likely if a country's death rate among the elderly increases | the time required to reach a given population will increase |
| after a forested area is clear-cut, what type of succession occurs | secondary |
| how does the consumption of local resources and resulting global environmental impact of an affluent family from the US compare with that of a rural family from kenya | the US family consumes less locally and has a larger global impact than kenyan family |
| when all vegetation is removed from a site by human activity or by natural forces such as volcanic activity, what species are the first to colonize the site | pioneer |
| the mauna loa volcano of hawaii releases lava that kills many plants. after lava hardens, plant life returns to the mountainside. this is known as what | primary succession |
| two species of buttercup can be found in the same field in south dakota. one species flowers in early spring and oher in late summer both are pollinated by same insect. example of | resource partitioning |
| if women in a country delay childbearing | the population growth rate will decrease |
| which is not a reason that the agricultural revolution led to increase in the human population | it reduced the amount of pesticide used on crops |
| at present, earth's human population | increases exponentially |
| a country has a total fertility rate equal to replacement level fertility, and emigration equal to immigration. which must be true? | the population is stable |
| within the US, which subgroup has the lowest infant mortality | caucasian |
| which of the following is not a K selected species | mouse |
| the removal of all beavers, a well known ecosystem engineer from a particular habitat is likely to | I and II |
| the first plant community that forms on bare rock often includes organisms such as | lichens and mosses |
| phase two of demographic transition is characterized by | high birth rates and low death rates |
| a brightly colored insect that is poisonous to predators is using | morphological and chemical defenses |
| ecologist paul ehrlich likened species in a community to rivets holding together an airplane. these crucial rivets represent | keystone species |
| thomas malthus proposed the notion that | the human population could exceed earth's carrying capacity |
| a population of river otters has a population growth of 0.2 per year. if the population starts out with 50 and there is no death and migration, how many would you expect after a year and two | 60, 72 |
| which pattern describes a type I survivorship curve | high survival throughout the lifespan until individuals die in old age |
| the IPAT equation uses which three major factors to assess environmental impact | technology, population, affluence |
| during phase I of a demographic transition there are | high death rates II |
| in recent years, US families have increased quinoa, imported from peru and bolivia. quinoa has | a global and local US impact since the entire supply chain affects the local and global communities |
| which is not a type of interspecific interaction | speciation |
| which country is not in phase IV of a demographic transition | india |
| the roots of many plants are infected with fungus, it supplies carbon to fungus and nutrients, how can it be classified | mutualistic |
| in the past century, overgrazing by cattle and sheep has caused sagebrush to expand its range over the colorado plateau grassland, indicating that | the range of sagebrush is normally limited by competition with grasses |
| cycloclasticus is a genus of bacteria that consumes hydrocarbons, which are a major component of all forms of oil. cycloclasticus populations increased in the gulf of mexico, what would be the carrying capacity | 80,000 |
| which does not cause rapid growth in a population | introduction of a new parasite |
| using the rule of 70, a population growing at 10 percent would double in | 7 years |
| characteristics of an r selected species include | I, II, and III |
| the age structure of a population can help determine how quickly species grow. k selected would have what | many older reproductively mature individuals, slow growth rate |
| crude death rate of a population is expressed as a | ratio |
| when mosquitoes are abundant, purple martins flock. the movement of the birds is related to a | density dependent factor |
| the major factors that increase GDP include | I, II, and III |
| which might a predator use to catch its prey | camouflage |
| the infant mortality rate are for children under what and what of age | 1 years and 5 years |
| a country's impact on the environment is influenced by | I, II, and III |
| a population of honeybees has 15 females and 45 males. what is the sex ratio | 3:1 |
| a certain species of animal represents just 3 percent of the biomass in its ecosystem. We might classify this as a keystone species if its elimination | caused the diversity of the plant community to sharply decrease |
| A country with a negative growth rate will not double in size at current birth and death rates. | I only |
| which is not an effective means for prey species to evade predators | bright coloration |
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finleyabro
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