Question 1
Question
What is the relationship between a tapeworm and a dog?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agonistic behavior
Question 2
Question
What type of relationship best describes lichens?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agonostic behavior
Question 3
Question
What type of relationship is formed between mycorrhizal fungi and plant roots?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agonistic behavior
Question 4
Question
What could result from an overlap in the niches of two closely related species?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agonistic behavior
Question 5
Question
Which type of relationship is characterized by benefiting one organism and producing no harm or advantage to the other?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agnostic behavior
Question 6
Question
What word best represents ritualized contests that determine which competitor gains access to food or mates?
Answer
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Mutualism
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Parasitism
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Commensalism
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Resource partitioning
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Agonostic behavior
Question 7
Question
Which type of biome is characterized by rapid recycling of nutrients?
Question 8
Question
Which biome has the least amount of moisture?
Question 9
Question
What biome is characterized by permafrost?
Question 10
Question
What biome consists of mainly grassland with a few trees?
Question 11
Question
What biome is characterized with having high levels of light on the forest floor in early spring?
Question 12
Question
What biome has distinct rainy and dry seasons?
Question 13
Question
What biome is characterized by evergreens?
Question 14
Question
What process is performed by bacteria that live in the nodules of legume plants?
Answer
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Nitrogen fixation
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Denitrification
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Excretion
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Assimilation
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Ammonification
Question 15
Question
What process converts atmospheric nitrogen into ammonia?
Answer
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Nitrogen fixation
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Denitrification
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Exretion
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Assimilation
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Ammonification
Question 16
Question
What is the name of the process that returns gaseous nitrogen back into the atmosphere?
Answer
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Nitrogen fixation
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Denitrification
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Excretion
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Assimilation
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Ammonification
Question 17
Question
What process results in urea, uric acid and ammonia being deposited into the soil?
Answer
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Nitrogen fixation
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Denitrification
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Excretion
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Assimilation
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Ammonification
Question 18
Question
What process is characterized by plants taking up ammonium and nitrates to build amino acids and nitrogenous bases?
Answer
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Nitrogen fixation
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Denitrification
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Excretion
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Assimilation
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Ammonification
Question 19
Question
What is the process in which nitrogen-containing organic molecules are broken down, and NH3 is released?
Answer
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Nitrogen fixation
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Denitrification
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Excretion
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Assimilation
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Ammonification
Question 20
Question
In which of the following organisms would one expect to find the greatest concentration of mercury (a harmful metal pollutant)?
Answer
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Seaweed
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Plankton
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Minnows
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Bass
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Tuna
Question 21
Question
All of the following are true statements about the biomass pyramid EXCEPT
Answer
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The base of the pyramid represents primary consumers.
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The amount of biomass at any trophic level is dependent on the trophic level below it.
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Biomagnification occurs at the top trophic levels.
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Decomposers can feed at several trophic levels.
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The biomass of a trophic level is the dry mass of all the organisms present in that trophic level.
Question 22
Question
A fast-moving stream is most likely to
Answer
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be eutrophic.
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be susceptible to algal blooms.
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show thermal stratification.
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have high levels of dissolved oxygen.
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have a high salinity.
Question 23
Question
All of the following represent mutualistic associations in ecosystems EXCEPT
Answer
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Legume plants with nodules containing nitrogen-fixing bacteria
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Aphids that feed on phloem sap
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Cellulose-digesting microorganisms in the termite gut
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Mycorrhizal fungi
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Lichens
Question 24
Question
A species of ant protects an acacia tree from a specific predator. The acacia tree has specialized storage areas in which these ants live. This is an example of
Answer
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coevolution.
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convergent evolution.
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homologous structures.
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analogous structures.
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speciation.
Question 25
Question
Which of the following organisms can feed at more than one trophic level?
Question 26
Question
Which of the following are correctly paired?
Answer
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Imprinting: your mother recognizes a long-lost friend after 10 years of separation
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Trial and error : your cat runs into the kitchen when it hears a can of food being opened
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Operant conditioning : your dog brings you your slippers for a treat
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Habituation : you are startled every time your sister slams the dorr
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Fixed-action pattern : a fish learns not to strike at a rubber worm
Question 27
Question
A farmer is concerned about the poor yields of her indoor crops. Possible remedies include all of the following EXCEPT
Answer
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Rotate the crops, planting legumes with each rotation
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Inoculate the soil with a fungus that forms mycorrhizal associations with plants
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Increase the concentration of carbon dioxide in the air
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Increase the concentration of oxygen in the air
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Make sure the water contains minerals such as phosphorus and sulfur
Question 28
Question
Which of the following is TRUE regarding the flow of energy and nutrients in an ecosystem?
Answer
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Energy and nutrients are both recycled.
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Energy is recycled, but only 10 percent of the nutrients from one trophic level are transferred to the one above it.
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Nutrients are recycled, but energy is lost from every trophic level.
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Nutrients accumulate at the highest trophic levels, and energy is lost at each trophic level.
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Neither nutrients nor energy are recycled in an ecosystem.
Question 29
Question
Mt. Saint Helens, a North American volcano, erupted in May 1980. The eruption wiped out everything within a 200-square-mile radius of the volcano. Today, small trees, grasses, shrubs, and several animals including secondary consumers inhabit the area. Which of the following est explains this situation?
Answer
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Evolution
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Natural selection
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Eutrophication
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R-selection
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Succession
Question 30
Question
Which of the following illustrates a biotic aspect of an ecosystem?
Answer
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Elephants have a low metabolic rate compared to other mammals.
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Pine trees will not grow in saltwater.
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Monarch butterflies only live where milkweed plants grow.
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Some conifers will grow only where forest fires scorch their seeds.
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Trout prefer to live in cold water.
Question 31
Question
An ecologist studying how the invasive kudzu plant affects the population dynamics of native plants is focusing on the
Answer
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population.
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biome.
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ecosystem.
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community.
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individuals.
Question 32
Question
All of the following are characterisitics of an ideal pioneer species EXCEPT
Question 33
Question
Which of the following sea creatures might be described as a pelagic animal of the aphotic zone?
Question 34
Question
Ted was a passenger on a plane that took off from New York, flew over temperate deciduous forest, then grassland and desert, then arrived at an airport in chaparral. Ted was flying
Answer
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nonstop to southern Washington State.
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nonstop to southern California.
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nonstop to western Florida.
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to Nevada, then transferred to a plane flying into Oregon.
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to Oregon, then transferred to a plane flying into Nevada.
Question 35
Question
The primary ecological factor determining the distribution of deserts on the planet is
Question 36
Question
Heliconius butterflies live on passionflower vines. Females of some Heliconius species avoid laying their bright yellow eggs on leaves where other yellow egg clusters have been laid. Some species of passionflowers develop large, yellow nectaries that resemble Heliconius eggs. Which of the following terms most acuratel explains the relationship between the Heliconius butterfly and the passionflower vine?
Answer
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Adaptive radiation
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Coevolution
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Counterevolution
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Mutualism
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Mutation
Question 37
Question
All of the following statements concerning the relationship between angiosperms and their insect pollinators are true EXCEPT
Answer
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Flower parts may resemble the female of some insect species.
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Insects assist in pollinating flowers by carrying seeds from one plant to another.
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Brightly colored flowers are the result of coevolution between plants and insects.
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Nectar produced by some flowers serves to attract insect pollinators.
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Insects that pollinate brightly colored flowers probably have color vision.
Question 38
Question
The orange and black monarch butterfly feeds on the milkweed plant, which contains a cardiac glycoside that is poisonous to birds. The viceroy butterfly has the same wing coloration as the monarch but does not feed on the milkweed plant. Animals avoid eating both kinds of butterflies. The coloration on the viceroy is an example of
Answer
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mutation.
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learning.
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pattern formation.
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mimicry.
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sexual selection.