मराठी

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

Advertisements
Advertisements

प्रश्न

What will happen if deer is missing in the food chain given below?

Grass → Deer → Tiger

पर्याय

  • The population of tiger increases

  • The population of grass decreases

  • Tiger will start eating grass

  • The population of tiger decreases and the population of grass increases

MCQ
Advertisements

उत्तर

The population of tiger decreases and the population of grass increases

Explanation -

In the given food chain, the grass is eaten by deer which in turn, is eaten by tigers. If deer is missing in the food chain, grass will not be eaten by it so, the population of grass will increase whereas tigers will not get their food and its population will decrease.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Our Environment - Multiple Choice Questions [पृष्ठ १०९]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science Exemplar Class 10
पाठ 15 Our Environment
Multiple Choice Questions | Q 18. | पृष्ठ १०९

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

List two important roles play in the environment by decomposers.


What are trophic levels? Give an example of a food chain and state the different trophic levels in it.


What will happen if we kill all the organisms in one trophic level?


Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?


In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?

Plants → Rats → Snakes → Hawks
 


Which of the following belong to the same trophic level?
Goat ; Spider ; Plants ; Hawk ; Rat

 

A food chain represents a unidirectional flow of X. What is X?


Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain


A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part she saw a water beetle holding a tadpole in its jaws.
(a) Construct a food chain for the pond.
(b) How many links are there in this chain?


Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the ______.


The following is a food chain that ends with human :

How does this food chain differ form a usual food chain involving human such as : plants → goat → human?


What would happen to the number of grass plants and foxes if the number of rabbits increased?


In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 500 kJ
(b) 50 kJ
(c) 5000 kJ
(d) 5 kJ


Human body is made up of five important components, of which water is the main component. Food, as well as potable water, are essential for every human being. The food is obtained from plants through agriculture. Pesticides are being used extensively for a high yield in the fields. These pesticides are absorbed by the plants from the soil along with water and minerals and from the water bodies these pesticides are taken up by the aquatic animals and plants. As these chemicals are not biodegradables, they get accumulated progressively at each trophic level. The maximum concentration of these chemicals gets accumulated in our bodies and greatly affects the health of our mind and body.
  1. Why is the maximum concentration of pesticides found in human beings?  (1)
  2. Give one method which could be applied to reduce our intake of pesticides through food to some extent.  (1)
  3. Various steps in a food chain represent:  (1) 
    1. Food web
    2. Trophic level
    3. Ecosystem
    4. Biomagnification
  4. With regard to various food chains operating in an ecosystem, man is a:   (1)
    1. Consumer
    2. Producer
    3. Producer and consumer
    4. Producer and decomposer

Arrange the following in a correct sequence and form a food chain

Rabbit → Carrot → Eagle → Snake


We should reduce the use of the plastic bags, bottles etc. because ______.


Each level in the food chain is called a ______ level.


Differentiate between herbivores and carnivores.


According to the 10% law, if producers in an ecosystem have 10,000 units of energy, approximately how much energy is available to primary consumers?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×