객관식
Which of the following is a true statement?
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26. Prokaryotes
Prokaryotes in the Environment
객관식
Which of the following are roles that prokaryotes play in the cycling of elements in an ecosystem?
A
Pollination and seed dispersal
B
Nitrogen fixation and decomposition
C
Photosynthesis and respiration
D
Water filtration and soil erosion
검증된 단계별 안내1
Understand the role of prokaryotes in ecosystems: Prokaryotes, which include bacteria and archaea, are crucial in various biogeochemical cycles, helping to recycle nutrients essential for life.
Identify nitrogen fixation: Prokaryotes, particularly certain bacteria, convert atmospheric nitrogen (N₂) into ammonia (NH₃), a form that plants can use. This process is vital for incorporating nitrogen into the ecosystem.
Recognize decomposition: Prokaryotes decompose organic matter, breaking it down into simpler substances. This process releases nutrients back into the soil, making them available for other organisms.
Differentiate from other roles: Pollination and seed dispersal are primarily roles of animals and plants, not prokaryotes. Photosynthesis is mainly performed by plants, algae, and some bacteria, while respiration is a process all living organisms perform.
Conclude with correct roles: The roles of prokaryotes in the cycling of elements in an ecosystem include nitrogen fixation and decomposition, as these processes are directly linked to their biological functions.
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