Biology · Environmental Studies

Ecosystem Nutrition and Energy Flow

1,093 Questions

Ecosystem nutrition and energy flow questions cover trophic levels, food chains, and biodegradable materials. These concepts frequently appear in general science sections of major competitive exams. Review these questions to build a solid understanding of ecological interactions.

Trophic levels conceptFood chain orderAutotrophic nutritionEnergy assimilationScavengers and decomposers

Ecosystem Nutrition and Energy Flow Questions

Multiple choice

A food chain will not begin in the absence of

  1. consumer

  2. producer

  3. decomposer

  4. producer and consumer

  5. either producer or decomposer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A producer in terms of biology refers to the first trophic level in a simple food chain. A food chain will not begin in the absence of producer.

Multiple choice

Directions: Read the statement carefully and answer the question that follows: Riya recently discovered that soil has micro organisms. She wants to know how do they get their food (moisture and nutrients for growth and survival). Her mother tells her that these micro organisms get their food from the soil itself.

Which of the habitats given below has plenty of water and nutrients in the soil to support microorganisms?

  1. The desert

  2. The forests

  3. The schoolplay field

  4. High mountain areas

  5. A construction site
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 The soil in forest reserves is rich in humus and is fertile because it has moisture as well as nutrients.

Multiple choice

A cow is dependent on plants for its food. This shows

  1. saprophytic nutrition

  2. heterotrophic nutrition

  3. parasitic nutrition

  4. autotrophic nutrition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option 2 is correct. Those organisms which are dependent upon other organisms for food are known as heterotrophs.

Multiple choice

In ecosystem, plants parasites are classified as

  1. herbivores

  2. carnivores

  3. omnivores

  4. scavengers

  5. insectivores
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An herbivore is an animal that gets its energy from eating plants, and only plants. Plant parasites are classified as herbivores because these feed on plants.

Multiple choice

Predators are often called as

  1. producers

  2. scavengers

  3. live feeders

  4. detritivorous

  5. filter feeders
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Predators are also called as live feeders as they feed directly upon their prey.

Multiple choice

Hippopotamus is a/an

  1. carnivore

  2. herbivore

  3. omnivore

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hippopotamuses are herbivores that feed primarily on grasses and other vegetation. Despite their large size and aggressive nature, they consume only plant material.