Single Choice

What will happen, if deer is missing in the food chain given below? Grass -----> Deer -----> Tiger

AThe population of tiger increases.
BThe population of grass decreases.
CTiger will start eating grass.
DThe population of tiger decreases and the population of grass increases.
Correct Answer

Solution

In an ecosystem, organisms at one trophic level are dependent on organisms at the preceding trophic levels for food. In the given food chain, deer is primary consumer. It is a herbivore animal that is dependent on grass. The tiger is a secondary consumer. It is a carnivore animal that is dependent on deer. If deer is absent from this food chain, the population of the tiger will decrease because deer is the only source of food for tiger in this food chain. Similarly, there won't be any check on the population of grass and hence the population of grass will increase. These changes will lead to ecological imbalance.
Therefore, the correct answer is option D.

SIMILAR QUESTIONS

Ecology and Environment

Which of the following constitute a food-chain?

Ecology and Environment

Select the option that correctly identifies A, B and C in the given table. Organism Trophic level Food chain Eagle A Grazing Earthworm Primary consumer B Frog C Grazing

Ecology and Environment

Select the incorrect food chain.

Ecology and Environment

Which group of organisms are not constituents of a food chain? (i) Grass, lion, rabbit, wolf (ii) Plankton, man, fish, grasshopper (iii) Wolf, grass, snake, tiger (iv) Frog, snake, eagle, grass, grasshopper

Ecology and Environment

Write the common food chain of a pond ecosystem.

Ecology and Environment

Show steps of food chains operating in: (a) Forests (b) Grasslands (c) Ponds

Ecology and Environment

Write true or false for the following statement: The length and complexity of food chains remain mostly the same.

Ecology and Environment

Consider the following statements concerning food chains. Which two of the statements are correct? (a) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. (b) Removal of most of the carnivores resulted in an increased population of dear. (c) The length of food chains is generally limited to 3-4 trophic levels due to energy loss. (d) The length of food chains may vary from 2-8 tropic levels Which two of the statements are correct?

Ecology and Environment

Consider the following statements concerning food chains. Which two of these statements are correct? (a) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. (b) Removal of most of the carnivores resulted in an increased population of deer. (c) The length of food chains is generally limited 3-4 trophic levels due to energy loss. (d) The length of food chains may very from 2 to 8 trophic levels.

Ecology and Environment

In a food chain, the maximum energy is stored in the

Contact Details