Biology · Environmental Studies

Ecosystem Nutrition and Energy Flow

1,235 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

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'.

Multiple choice biology what do animals eat? introduction to animal nutrition food for life types of nutrition

 The animals that feed by straining suspended matter and food particles from water is known as

  1. Filter feeders

  2. Detritivores

  3. Fungivores

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

Suspended food (phytoplankton, zooplankton, algae and other water-borne nutrients and particles) are trapped in the mucus of a gill, and from there are transported to the mouth, where they are eaten, digested and expelled as faeces or pseudofeces.


So, the correct option is 'Filter feeders'.

Multiple choice biology what do animals eat? introduction to animal nutrition food for life types of nutrition


Animals that feed discontinuously

  1. exhibit extremely rapid digestion

  2. must have digestive tracts that permit storage

  3. are able to avoid predators by limiting their feeding time

  4. both (b) and (c)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Continuous feeders: That must "eat" constantly because the food is taken in and then pushed out soon afterwards are called continuous feeders. Most of these animals either are permanently attached to something (such as clams or mussels) or are very slow moving.
  • Discontinuous feeders: Consume larger meals and store the ingested food for later digestion. These animals generally are more active and can avoid predators. Hence, the animals that feed discontinuously must have digestive tracts that permit storage and are able to avoid predators by limiting their feeding time.
So, the correct answer is 'both (b) and (c).

Multiple choice biology what do animals eat? introduction to animal nutrition food for life types of nutrition

Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter?

  1. Collector filterers

  2. Shredders

  3. Grazers

  4. Collector gatherers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Shredders are functional feeding groups in aquatic ecology that break down coarse particulate organic matter (CPOM) into fine particulate organic matter (FPOM).

Multiple choice evs roots and leaves plant adaptation and modification leaves leaf modification root, stem, and leaves

Insectivorous plants commonly grow in areas where soil is deficient in

  1. Carbon

  2. Nitrogen

  3. Potassium

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

The insectivorous plants are the carnivorous plants which feed on the insects. These plants have adapted to grow in the extreme conditions of the soil such as acidic pH. Generally, these plants are known to grow in the soil which is deficient in the mineral nutrients due to the presence of acid. The plant can grow in the soil which have low levels of nitrogen. 

Thus, the correct answer is option B.