Multiple Choice
In an ecosystem, how do nutrients typically move through the environment?
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52. Ecosystems
Introduction to Ecosystems
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which statement about ecosystems is false?
A
Energy flows through ecosystems in a one-way stream.
B
Ecosystems can vary greatly in size and complexity.
C
Ecosystems consist of both biotic and abiotic components.
D
Ecosystems are closed systems with no exchange of matter or energy.
Verified step by step guidance1
Understand the concept of an ecosystem: An ecosystem is a community of living organisms (biotic components) interacting with their physical environment (abiotic components).
Recognize that energy flow in ecosystems is unidirectional: Energy enters an ecosystem through sunlight, is converted by producers into chemical energy, and then flows through the food chain. This energy is eventually lost as heat, making the flow one-way.
Acknowledge the variability in ecosystems: Ecosystems can range from small, like a pond, to large, like a forest, and can vary in complexity based on the number of species and interactions.
Identify the components of ecosystems: Ecosystems include both living organisms (plants, animals, microorganisms) and non-living elements (water, air, minerals).
Clarify the misconception about ecosystems being closed systems: Ecosystems are open systems where both energy and matter are exchanged with their surroundings, such as through nutrient cycles and energy flow.
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