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Producers
Herbivores
Primary Consumers
Secondary Consumers
Predators
100
The branch of biology dealing with interactions among organisms and between organisms and their environment is called: a. economy. b. modeling. c. recycling. d. ecology.
ecology.
100
The part of Earth in which all living things exist is called the: a. biome. b. community. c. ecosystem. d. biosphere.
biosphere.
100
All of the members of a particular species that live in one area are called a(an) a. biome. b. population. c. community. d. ecosystem.
population
100
Which of the following descriptions about the organization of an ecosystem is correct? a. Communities make up species, which make up populations. b. Populations make up species, which make up communities. c. Species make up communities, which make up populations. d. Species make up populations, which make up communities.
Species make up populations, which make up communities.
100
The simplest grouping of more than one kind of organism in the biosphere is a. a population. b. a community. c. an ecosystem. d. a species.
a community
200
The lowest level of environmental complexity that includes living and nonliving factors is the a. biome. b. community. c. ecosystem. d. biosphere.
ecosytem
200
Green plants are a. producers. b. consumers. c. herbivores. d. omnivores.
producers
200
What is the original source of almost all the energy in most ecosystems? a. carbohydrates b. sunlight c. water d. carbon
sunlight
200
The algae at the beginning of the food chain is a. consumers. b. decomposers. c. producers. d. heterotrophs.
producers
200
An organism that produces its own food supply from inorganic compounds is called a(an) a. heterotroph. b. consumer. c. detritivore. d. autotroph.
autotroph
300
Which of the following organisms does NOT require sunlight to live? a. chemosynthetic bacteria b. algae c. trees d. photosynthetic bacteria
chemosynthetic bacteria
300
An organism that cannot make its own food is called a(an) a. heterotroph. b. chemotroph. c. autotroph. d. producer.
heterotroph
300
Organisms that break down and feed on wastes and dead organisms are called a. decomposers. b. omnivores. c. autotrophs. d. producers.
decomposers
300
What is an organism that feeds only on plants called? a. carnivore b. herbivore c. omnivore d. detritivore
herbivore
300
All the interconnected feeding relationships in an ecosystem make up a food a. interaction. b. chain. c. network. d. web.
web
400
What animals eat both producers and consumers? a. herbivores b. omnivores c. chemotrophs d. autotrophs
omnivores
400
What is the term for each step in the transfer of energy and matter within a biological community? a. energy path b. food web c. trophic level d. food pyramid
trophic level
400
A bird stalks, kills, and then eats an insect. Based on its behavior, which ecological terms describe the bird? a. herbivore, decomposer b. producer, heterotroph c. carnivore, consumer d. autotroph, herbivore
carnivore, consumer
400
Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is a. used in reproduction. b. stored as body tissue. c. stored as fat. d. eliminated as heat.
eliminated as heat
400
Which type of pyramid shows the amount of living tissue at each trophic level in an ecosystem? a. a numbers pyramid b. an energy pyramid c. a biomass pyramid d. a food pyramid
a biomass pyramid
500
Each of the following is an abiotic factor in the environment EXCEPT a. plant life. b. soil type. c. rainfall. d. temperature.
plant life
500
An organism’s niche is a. the way the organism uses the range of physical and biological conditions in which it lives. b. all the physical and biological factors in the organism’s environment. c. the range of temperatures that the organism needs to survive. d. a full description of the place an organism lives.
the way the organism uses the range of physical and biological conditions in which it lives.
500
Several species of warblers can live in the same spruce tree ONLY because they a. have different habitats within the tree. b. eat different foods within the tree. c. occupy different niches within the tree. d. can find different temperatures within the tree.
occupy different niches within the tree.
500
An interaction in which one organism captures and feeds on another organism is called a. competition. b. sybiosis. c. mutualism. d. predation.
predation
500
Different species can share the same habitat, but competition among them is reduced if they a. reproduce at different times. b. eat less. c. move away. d. occupy different niches.
occupy different niches