History
History, 05.11.2019 06:31, Tsumiki

Me 1. which of the following is true about ecology?
a. ecology is a philosophy that seeks to limit harm to the natural world.
b. ecology is a practice that emphasizes preservation of life.
c. ecology is an area of study that focuses on interactions in nature.
d. ecology is a strategy for sustainable living. 2. which of the following would be the best way for an ecologist to determine the effects of an industrial waste chemical on the survival of a fish species?
a. conducting experimental work in a lab
b. conducting library research
c. constructing mathematical models on a computer
d. observing the effect of increasing the amount of chemical in nature 3. how are populations, ecosystems, and communities related?
a. a community consists of an ecosystem and its physical environment, and an ecosystem is made up of many different populations of organisms.
b. a population consists of a community of organisms and its physical environment, and a community is made up of many different ecosystems.
c. an ecosystem consists of a community of organisms and its physical environment, and a community is mad up of many different populations of organisms.
d. an ecosystem consists of a population of organisms and its physical environment, and a population is made up of many different communities of organisms. 4. the algae at the beging of the food chain below are algae→zooplankton→small fish→ squid → shark
a. consumers.
b. decomposers.
c. producers.
d. chemotrophs. 5. why are ecological pyramids shaped as pyramids?
a. because there is a large decrease in the amount of energy or biomass as you move from one trophic level up to the next
b. because the movement of energy through the biosphere follows a path similar in shape to a pyramid
c. because decomposers form a wide base of support at the bottom of a food web similar to the base of a pyramid
d. because food webs are usually triangular in shape 6. what is true of matter in ecosystems?
a. the primary productivity of an ecosystem does not depend on the availability of nutrients.
b. living things can recycle elements within an ecosystem as long as decomposers are present.
c. matter flows in a one-way direction with a 10% loss at each move up in trophic level.
d. elements continuously cycle between the physical environment and living organisms. 8. organisms need nutrients in order to
a. utilize hydrogen and oxygen.
b. carry out essential life functions.
c. recycle chemical compouds.
d. carry out nitrogen fixation. 9. a praying mantis catches and eats a moth. which of the following set of terms describes the praying manits?
a. omnivore, heterotroph, producer
b. producer, carnivore, autotroph
c. predator, herbivore, heterotroph
d. consumer, carnivore, predator 10. which of the following has the least opportunity for recovery?
a. a forest burned by fire cause by a lightning strike
b. a forest cut down by a logging company
c. a forest flooded for a week following heavy spring rains
d. a forest decimated by an avalanche 11. which factors provide the basis for the differences observed in the major land biomes on earth?
a. average temperature and average precipitation
b. average windspeed and average oxygen levels
c. average day length and average night length
d. average organic content and average mineral content in soil

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Me 1. which of the following is true about ecology?
a. ecology is a philosophy that seeks t...

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