Multiple Choice
Which statement describes a biotic factor interacting with the environment?
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48. Ecology
Introduction to Ecology
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Humans alter ecosystems by ______.
A
introducing invasive species
B
increasing natural biodiversity
C
eliminating all abiotic factors
D
preventing all natural disturbances
Verified step by step guidance1
Understand the question: The problem asks how humans alter ecosystems. This requires identifying human activities that impact ecosystems and their components.
Analyze the options: Review each provided option to determine if it aligns with known human activities and their effects on ecosystems.
Option 1: 'Introducing invasive species' - Humans often introduce non-native species to new environments, either intentionally or accidentally. These species can disrupt ecosystems by outcompeting native species, altering food webs, and changing habitat structures.
Option 2: 'Increasing natural biodiversity' - While conservation efforts aim to protect biodiversity, human activities like deforestation, pollution, and urbanization typically reduce biodiversity rather than increase it.
Option 3 and 4: 'Eliminating all abiotic factors' and 'Preventing all natural disturbances' - These are not feasible or accurate. Abiotic factors (like sunlight, water, and soil) are essential for ecosystems, and humans cannot prevent all natural disturbances (e.g., storms, wildfires).
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