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1 Answer KeyFood Web, Food Chain, Energy Pyramid, Niche, Carrying Capacity Review Questions for Ecology Test #2A)Both species evolved through the process of ecological )Each species occupies a different )The two species can )Species A is a scavenger and species B is a scientist studied iguanas inhabiting a chain of small ocean islands. He discovered two species that live in differenthabitats and display different behaviors. His observations are listed in the table statement best describes these two species of iguanas?A)each occupies a different nicheB)they interbreedC)they use different methods of reproductionD)birds compete for closely related species of birds live in the same tree.

2 Species A feeds on ants and termites, while species B feeds oncaterpillars. The two species coexist successfully becauseA)have different food requirementsB)compete for the same environmental resourcesC)coexist successfully in the same habitatD)interbreed and produce hybrid different species with the same ecological niche are placedin the same habitat. These two species will most likelyA)climax faunaB)nicheC)biological controlD) plants that grow in the same location and require the sameresources would most likely compete for the sameA)solar energy from the grassB)heat energy lost to the environmentC)chemical energy from the hawkD)chemical energy from the food chain is represented rabbit hawkStructures within the rabbit are formed usingA)biotic factorsB) abiotic factorsC)inorganic compoundsD)finite group would most likely be represented in a food chain?

3 A)autotrophsB)hostsC)herbivoresD) final consumers in many food webs areA)As the birds feed higher in the tree, available )More abiotic resources are available for each )Predators are less likely to feed on birds in a variety )There is less competition for ecological niches of three bird species are shown in thediagram is the advantage of each bird species having a differentniche?A)The Sun provides the needed )Energy is transferred from plants to )There are more consumers than )There are interactions between biotic and abiotic statement represents a characteristic of an ecosystem thatis not likely to sustain itself?

4 A)oxygenB)waterC)energyD) component of a stable ecosystem can not be recycled?Review for Ecology Test # your Answer to the following question on the diagram below, which represents an ameba engulfing bacteria, and onyour knowledge of )decomposerB)producerC)consumerD)pathoge nThis ameba would most likely be classified as aA)1B)2C)3D) row in the chart below best describes decomposers?A)a decomposer that most likely feeds on nectar (a sugaryliquid) from flowersB)a heterotroph that may eat insects and is more closelyrelated to a robin than to an earthwormC)a scavenger that feeds on animals and reproduces asexuallyD)an autotroph that probes tree bark for insects and diagram below represents a woodpecker bird may best be described asA)snake eating a birdB)tree absorbing mineralsC)fungus breaking down wastesD)deer eating relationship between a consumer and producer is bestillustrated by aA)toads and snakesB)deer and miceC)wolves and raccoonsD)

5 Grasshoppers and diagram below represents a food of the herbivores represented in this food web areA)an increase in the number of carnivore speciesB)a decrease in new predators migrating into the ecosystemC)a decrease in the size of decomposersD)an increase in the number of removal of nearly all the predators from an ecosystemwould most likely result in?Review for Ecology Test #2A)1B)2C)3D) diagram below represents a food chain made up of organisms found in a row in the chart correctly identifies characteristics that can be associated with the members of this food chain?

6 A)4 consumers and no producersB)1 predator, 1 parasite, and 2 producersC)2 carnivores and 2 herbivoresD)2 predators, 1 herbivore, and 1 food chain containsGrass Cricket Frog OwlA)The bird population )The insect population )The bird population began to seek a new food )The insect population began to seek a new food brown tree snakes were accidentally introduced onto theisland of Guam, they had no natural predators. These snakessought out and ate many of the eggs of insect-eating birds. Whatprobably occurred following the introduction of the brown treesnakes?A)AB)BC)CD) diagram below represents a food web composed ofproducers, consumers, and group would represent the decomposer organisms?

7 A)an increase in the number of deerB)a decrease in the amount of grassesC)an increase in the number of snakesD)a decrease in the amount of diagram below represents interactions that occur betweensome organisms in an factor would most likely cause an increase in the numberof frogs?A)a food chainB)an energy pyramidC)a food webD)an ecological succession greatest number of relationships between the organisms inan ecosystem is best shown inReview for Ecology Test #2A)sedgesB)algaeC)antsD) population would be most immediately affected by the removal of the lizard population?

8 Your Answer to the following question on the diagram below and on your knowledge of biology. The diagramrepresents part of a food )tadpoles algae daphnia back swimmersB)sedges ants frogs kookaburrasC)algae daphnia decayed material bacteriaD)dragonflies sedges ants centipedesWhich sequence of organisms represents a food chain within this food web?A)Larger organisms eat the shellfish and more chemicals will build up in their )The shellfish will prevent other organisms from obtaining )Smaller organisms will be unaffected by the )Larger organisms will be less affected by the oil, because they can eat other the spring of 2010, there was a catastrophic explosion on an ocean oil drilling rig, causing millions of gallons of oil tobe released into the Gulf of Mexico.

9 Many organisms died due to the thick sludge in their habitat. However, in someorganisms, such as shellfish, the oil stuck to tissues inside their shells. Which statement expresses a major concern ofenvironmentalists about the accumulation of the oil in certain organisms in the Gulf of Mexico ecosystem?A)producers are not as important as consumers in a food webB)more consumers than producers are needed to support thefood webC)organisms in this food web are interdependentD)populations tend to stay constant in a food season, there was a shortage of producers in a food web.

10 Asa result, the number of deer and wolves decreased. What is thereason that both the deer and wolf populations declined?A)sunlight plant wolf rabbitB)plant sunlight rabbit wolfC)sunlight plant rabbit wolfD)wolf rabbit plant sequence that best illustrates the flow of energy through anecosystem isReview for Ecology Test #2A)grass and treesB)mouse, rabbit, and cricketC)deer and mountain lionD)frog, snake, and organisms are carnivores?A)ecosystems are shaped by nonliving factorsB)autotrophs convert solar energy into foodC)grasshoppers are producers that are essential for ecosystemstabilityD)populations are linked with many others in the diagram below represents relationships in a a pathogen reduced the population of grasshoppers, thenumber of mice increased, while the numbers of toads andrabbits changes in the community demonstrate thatA)There would be more snakes than pocket )There would be more coyotes than )There would be more insects than insect eating )