Energy flows through an ecosystem along a circuit called the
(a) food web.
(b) niche order.
(c) trophic place.
(d) food chain.
Answer: (d) food chain.
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Pastoralism
A) requires elaborate fencing networks and patterns to manage herds. B) is most commonly practiced in drier climates unsuitable for subsistence agriculture. C) is increasing in important in most parts of the world. D) has largely replaced intensive subsistence agriculture in Southeast Asia.
Plants release water vapor through their leaves; this process is called ________
A) evaporation B) transpiration C) condensation D) percolation E) magnification
Where does a tropical cyclone or hurricane get its energy?
a. in the heat and moisture rising from a low-pressure cell of the tropical ocean b. from heat of the sun shining off a hot desert near the equator c. from high temperatures of a humid high-pressure weather cell near the equator d. from high summer temperatures over humid equatorial jungles e. in the dry, cool air coming from a low-pressure cell of an adjacent ocean
Which of the following periods belongs to the Mesozoic era?
A) Triassic B) Cambrian C) Paleogene D) Devonian