Photosynthesis, Food Chain, & Ecosystem Quiz

Reviewed by Stephen Reinbold

Stephen Reinbold, PhD (Biological Sciences) |

Biology Instructor

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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)

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Photosynthesis, Food Chain, & Ecosystem Quiz - 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 Questions and Answers

1.

These autotrophs are photosynthesizers such as algae and green plants that produce most of the organic nutrients for the biosphere.
- A.
  
  Enzymes
- B.
  
  Photoautotrophs
- C.
  
  Coliform
- D.
  
  Chemoautotrophs
Correct Answer
B. 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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2.

They rely on producers directly or indirectly for a living.
- A.
  
  Producer
- B.
  
  Consumers
- C.
  
  Decomposers
- D.
  
  Carnivores
Correct Answer
B. 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.

Earthworms and some beetles, termites, and maggots are all terrestrial .
- A.
  
  Producer
- B.
  
  Consumer
- C.
  
  Detritiviores
- D.
  
  Carnivores
Correct Answer
C. 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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4.

It is used to describe the relationship if both species benefit from each other.
- A.
  
  Mutualism
- B.
  
  Carnivore
- C.
  
  Symbiosis
- D.
  
  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 animals that feed both on plants and animals.
- A.
  
  Omnivores
- B.
  
  Carnivores
- C.
  
  Herbivores
- D.
  
  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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6.

All ecological space that shares the same species, climate, animals, and plants is called
- A.
  
  Habitat
- B.
  
  Biomes
- C.
  
  Environment
- D.
  
  Ecosystem
Correct Answer
B. 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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7.

These are selected single-lane food relationships in a series among organisms
- A.
  
  Food chain
- B.
  
  Niche
- C.
  
  Food web
- D.
  
  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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8.

It is the ultimate source of energy for every ecosystem.
- A.
  
  Coal
- B.
  
  Water
- C.
  
  Soil
- D.
  
  Sun
Correct Answer
D. Sun

Explanation
The sun is the ultimate source of energy for every ecosystem. It provides light and heat, which are essential for photosynthesis to occur in plants. Photosynthesis is the process by which plants convert sunlight into energy-rich molecules, such as glucose, which then serve as food for other organisms in the ecosystem. Additionally, sunlight also drives weather patterns, which in turn influence the distribution of water and nutrients in the ecosystem. Without the sun's energy, life on Earth would not be possible.

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9.

A ___________ consists of all the organisms that feed at a particular level in a food chain.
- A.
  
  Niche
- B.
  
  Trophic level
- C.
  
  Food pyramid
- D.
  
  Niche
Correct Answer
B. 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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10.

They are unable to produce food, are constantly looking for source of organic nutrients from elsewhere.
- A.
  
  Autotrophs
- B.
  
  Detritivores
- C.
  
  Decomposers
- D.
  
  Heterotrophs
Correct Answer
D. 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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Stephen Reinbold |PhD (Biological Sciences) |

Biology Instructor

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Current Version
Sep 30, 2024

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Expert Reviewed by
Stephen Reinbold
Mar 23, 2021

Quiz Created by
Catherine Halcomb

Photosynthesis, Food Chain, & EcoSystem Quiz

Photosynthesis, Food chain, & Ecosystem Questions and Answers

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

They rely on producers directly or indirectly for a living.

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

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

These are animals that feed both on plants and animals.

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

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

It is the ultimate source of energy for every ecosystem.

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

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