Photosynthesis, Food Chain, & EcoSystem Quiz

Reviewed by Stephen Reinbold
Stephen Reinbold, PhD (Biological Sciences) |
Biology Instructor
Review Board Member
Stephen Reinbold has a PhD in Biological Sciences and a strong passion for teaching. He taught various subjects including General Biology, Environmental Science, Zoology, Genetics, and Anatomy & Physiology at Metropolitan Community College in Kansas City, Missouri, for nearly thirty years. He focused on scientific methodology and student research projects. Now retired, he works part-time as an editor and engages in online activities.
 , PhD (Biological Sciences)
By Catherine Halcomb
Catherine Halcomb
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    It is the ultimate source of energy for every ecosystem.

    • Coal
    • Water
    • Soil
    • Sun
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About This Quiz

Welcome to the Photosynthesis, Food Chain, & Ecosystem Quiz! This quiz is designed to test your understanding of key ecological concepts that are fundamental to life on Earth. Whether you're a student, a biology enthusiast, or just curious about nature, this quiz offers a fun and educational challenge. You'll explore the process of photosynthesis, the intricacies of food chains, and the dynamics of ecosystems. Dive into questions that will enhance your knowledge of how energy flows through the environment and how different species interact. Test your skills and discover new insights into the natural world. Good luck!

Photosynthesis, Food Chain, & Ecosystem Quiz - Quiz

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  • 2. 

    They rely on producers directly or indirectly for a living.

    • Producer

    • Consumers

    • Decomposers

    • Carnivores

    Correct Answer
    A. Consumers
    Explanation
    Consumers rely on producers directly or indirectly for a living because they obtain their energy and nutrients by consuming other organisms, including plants (producers) or other animals that have consumed plants. Consumers play a crucial role in the food chain as they transfer energy and nutrients from lower trophic levels to higher trophic levels. Without consumers, the energy flow and nutrient cycling in ecosystems would be disrupted, affecting the overall balance and functioning of the ecosystem.

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  • 3. 

    These are animals that feed both on plants and animals.

    • Omnivores

    • Carnivores

    • Herbivores

    • Producers

    Correct Answer
    A. Omnivores
    Explanation
    Omnivores are animals that have a diet consisting of both plants and animals. They are able to consume and digest a variety of food sources, including fruits, vegetables, meat, and insects. This dietary flexibility allows them to adapt to different environments and obtain a balanced nutrition. Examples of omnivores include humans, bears, raccoons, and pigs.

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  • 4. 

    It is used to describe the relationship if both species benefit from each other.

    • Mutualism

    • Carnivore

    • Symbiosis

    • Producer

    Correct Answer
    A. Mutualism
    Explanation
    Mutualism is the correct answer because it is a type of symbiotic relationship where both species involved benefit from each other. In mutualism, both species provide resources or services that the other species needs, resulting in a mutually beneficial arrangement. This can include things like pollination, cleaning, or protection. The other options, carnivore and producer, do not accurately describe the relationship where both species benefit.

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  • 5. 

    These are selected single-lane food relationships in a series among organisms

    • Food chain

    • Niche

    • Food web

    • Trophic level

    Correct Answer
    A. Food chain
    Explanation
    A food chain is a linear sequence of organisms that shows the transfer of energy and nutrients from one organism to another. It represents the flow of energy through different trophic levels, starting with producers (plants) and ending with top predators. Each organism in the food chain occupies a specific niche, which refers to its role or position in the ecosystem. A food web, on the other hand, is a more complex network of interconnected food chains, representing the multiple feeding relationships in an ecosystem. Therefore, the correct answer is food chain.

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  • 6. 

    These autotrophs are photosynthesizers such as algae and green plants that produce most of the organic nutrients for the biosphere.

    • Enzymes

    • Photoautotrophs

    • Coliform

    • Chemoautotrophs

    Correct Answer
    A. Photoautotrophs
    Explanation
    Photoautotrophs are organisms that can produce their own organic nutrients through the process of photosynthesis. They use sunlight as a source of energy to convert carbon dioxide and water into glucose and oxygen. Algae and green plants are examples of photoautotrophs. They play a crucial role in the biosphere by producing the majority of organic nutrients that support other organisms in the ecosystem.

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  • 7. 

    Earthworms and some beetles, termites, and maggots are all terrestrial .

    • Producer

    • Consumer

    • Detritiviores

    • Carnivores

    Correct Answer
    A. Detritiviores
    Explanation
    Detritivores are organisms that feed on dead organic matter, such as decaying plants and animals. Earthworms, beetles, termites, and maggots are all examples of detritivores because they play a crucial role in breaking down and recycling organic material in the soil. They help decompose dead organisms, returning nutrients back into the ecosystem. Unlike producers, which produce their own food through photosynthesis, or consumers, which directly consume other living organisms, detritivores obtain their energy from non-living organic matter. Therefore, detritivores is the correct answer in this case.

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  • 8. 

    A ___________ consists of all the organisms that feed at a particular level in a food chain.

    • Niche

    • Trophic level

    • Food pyramid

    • Niche

    Correct Answer
    A. Trophic level
    Explanation
    A trophic level refers to a specific position in a food chain or food web where organisms obtain their energy. It represents the feeding hierarchy in an ecosystem, with each level consisting of organisms that occupy the same position in the food chain and obtain energy from the same source. The organisms in a trophic level have similar nutritional requirements and play a specific role in the transfer of energy and nutrients through the ecosystem. Therefore, the correct answer is trophic level.

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  • 9. 

    They are unable to produce food, are constantly looking for source of organic nutrients from elsewhere.

    • Autotrophs

    • Detritivores

    • Decomposers

    • Heterotrophs

    Correct Answer
    A. Heterotrophs
    Explanation
    Heterotrophs are organisms that are unable to produce their own food and rely on external sources for organic nutrients. They obtain their energy by consuming other organisms or organic matter. In this context, the statement suggests that the organisms mentioned are constantly searching for organic nutrients, indicating that they are dependent on external sources for their sustenance. Therefore, the correct answer is heterotrophs.

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  • 10. 

    All ecological space that shares the same species, climate, animals, and plants is called

    • Habitat

    • Biomes

    • Environment

    • Ecosystem

    Correct Answer
    A. Biomes
    Explanation
    Biomes is the correct answer because it refers to a specific type of ecological space that encompasses a large geographic area and is characterized by distinct climate, vegetation, and animal species. Unlike habitats, which are smaller and more localized, biomes are broader and encompass multiple habitats that share similar environmental conditions. Therefore, biomes provide a more comprehensive and encompassing term for the ecological space described in the question.

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Stephen Reinbold |PhD (Biological Sciences) |
Biology Instructor
Stephen Reinbold has a PhD in Biological Sciences and a strong passion for teaching. He taught various subjects including General Biology, Environmental Science, Zoology, Genetics, and Anatomy & Physiology at Metropolitan Community College in Kansas City, Missouri, for nearly thirty years. He focused on scientific methodology and student research projects. Now retired, he works part-time as an editor and engages in online activities.

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  • Mar 25, 2025
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    Expert Reviewed by
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  • Mar 23, 2021
    Quiz Created by
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