Multiple Choice
Which term describes a group of ecosystems that share similar climates and typical organisms?
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48. Ecology
Introduction to Ecology
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Which term refers to the parts of Earth where life exists?
A
Atmosphere
B
Lithosphere
C
Hydrosphere
D
Biosphere
Verified step by step guidance1
Step 1: Begin by understanding the term 'biosphere'. The biosphere refers to all regions of Earth where life exists, including land, water, and air.
Step 2: Compare the biosphere with the other terms provided in the question: 'atmosphere', 'lithosphere', and 'hydrosphere'. These terms describe specific components of Earth but do not encompass all areas where life exists.
Step 3: Define each term for clarity: 'Atmosphere' refers to the layer of gases surrounding Earth, 'Lithosphere' refers to the solid outer layer of Earth (crust and upper mantle), and 'Hydrosphere' refers to all water on Earth, including oceans, rivers, and lakes.
Step 4: Recognize that the biosphere integrates all these components (atmosphere, lithosphere, and hydrosphere) as it includes any area where life can thrive.
Step 5: Conclude that the correct term describing the parts of Earth where life exists is 'biosphere', as it encompasses all regions supporting life.
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