Multiple Choice
Look at the food web in the figure to the right. What is the role of mice in this ecosystem?
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48. Ecology
Introduction to Ecology
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In a beach ecosystem, which of the following organisms is most likely to be considered a primary producer?
A
Hermit crab
B
Sand crab
C
Seagull
D
Seagrass
Verified step by step guidance1
Understand the concept of primary producers: Primary producers are organisms that can produce their own food through processes like photosynthesis or chemosynthesis. They form the base of the food chain in an ecosystem.
Identify the organisms listed in the problem: Hermit crab, sand crab, seagull, and seagrass. Determine which of these organisms can produce their own food.
Recall that crabs (hermit crab and sand crab) and seagulls are consumers, meaning they rely on other organisms for food. They cannot produce their own food and are not primary producers.
Recognize that seagrass is a type of plant. Plants are primary producers because they use sunlight, water, and carbon dioxide to create energy through photosynthesis.
Conclude that seagrass is the correct answer because it is the only organism listed that fits the definition of a primary producer in the beach ecosystem.
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