Multiple Choice
How does energy first enter a pond ecosystem?
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52. Ecosystems
Energy Flow Through Ecosystems
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In what direction does energy flow in a food web?
A
From consumers to decomposers
B
From decomposers to producers
C
From consumers to producers
D
From producers to consumers
Verified step by step guidance1
Understand the basic structure of a food web: A food web is a complex network of interconnected food chains in an ecosystem, showing how energy and nutrients flow through different organisms.
Identify the roles of different organisms: Producers, such as plants and algae, are organisms that produce energy through photosynthesis. Consumers are organisms that obtain energy by eating other organisms. Decomposers break down dead organisms, returning nutrients to the environment.
Recognize the direction of energy flow: Energy in a food web flows from producers to consumers. Producers convert solar energy into chemical energy through photosynthesis, which is then transferred to consumers when they eat the producers.
Consider the role of decomposers: While decomposers are crucial for nutrient cycling, they do not directly transfer energy to producers or consumers in the same way. Instead, they break down organic matter, making nutrients available for producers.
Conclude the energy flow direction: Based on the roles of producers, consumers, and decomposers, the correct direction of energy flow in a food web is from producers to consumers.
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