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 evs food of animals animal and their eating habit classification of animals on the basis of food types of animals

The lion is a carnivore because

  1. The lion feeds on grass.

  2. The lion feeds on the flesh of other animals.

  3. The lion feeds on insects.

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Lions are “Obligate Carnivores”, which means they rely only on the flesh of other animals for their nutritional needs. The animals that consume meat, as well as non-animal foods, are known as “Facultative Carnivores”.
Hence B is the correct option. 

Multiple choice evs food of animals animal and their eating habit classification of animals on the basis of food types of animals

Cow feeds on grass and grains and is grouped under

  1. Carnivore

  2. Herbivore

  3. Omnivore

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

Herbivores are the kind of animals whose diet comprises of solely plants. There are different types of herbivores. They further divide into the category of insect herbivores and mammalian herbivores. Mammalian herbivores are found in abundance. They include cows, deer, horses, sheep and more. Hence, correct option is B.

Multiple choice evs food of animals animal and their eating habit classification of animals on the basis of food types of animals

Maximum number of enzymes occur in

  1. Omnivores

  2. Herbivores

  3. Carnivores

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

Omnivores have a more diverse diet than herbivores or carnivores, requiring a wider array of enzymes to digest various substrates like cellulose, starch, and proteins. This leads to a higher diversity and number of metabolic enzymes.

Multiple choice evs food of animals animal and their eating habit classification of animals on the basis of food types of animals

The lizard eats the small insects and worms. This type of eating habitat is known as 

  1. Omnivore

  2. Carnivore

  3. Herbivore

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A carnivore is an animal that gets food from killing and eating other animals.
Carnivores generally eat herbivores, but can eat omnivores, and occasionally other carnivores. Animals that eat other animals, like carnivores and omnivores are important to any ecosystem, because they keep other species from getting overpopulated. Hence, the correct option is B.
Multiple choice evs food of animals animal and their eating habit classification of animals on the basis of food types of animals

Detrivores include herbivores, primary carnivores and

  1. Producers

  2. Omnivores

  3. Detrivores

  4. Grazing food chain
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Detritivores are organisms that feed on detritus, which includes organic material from various sources including plants and animals. Omnivores are often included in broader ecological classifications of feeding habits.

Multiple choice biology nutrition in animals introduction to animal nutrition food for life types of nutrition

A plant that prepares its own food is

  1. Autotroph

  2. Parasite

  3. Epiphyte

  4. Saprophyte
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Autotrophs are organisms, that can prepare their own food through the process of photosynthesis such as plants.
  • An epiphyte is used to refer to a plant, that grows on another plant but is not dependent on that plant for its nutrition. 
  • When an organism is nutritionally dependent on another organism, it is called parasitism. 
  • Saprophytes are organisms, that feed on dead organic matter.
  • Thus, option A is correct.
Multiple choice biology what do animals eat? introduction to animal nutrition food for life types of nutrition

Detritivores are the animals which obtain nutrients from the 

  1. Dead and decomposed matter in the soil

  2. Plants

  3. Animals

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

A detritivore is a heterotrophic organism, which obtains its nutrition by feeding on detritus. Detritus is the organic matter made up of dead plant and animal material. So, the correct option is 'Dead and decomposed matter in the soil'.