English

The Sea Water Contains Water Beetles, Tadpole, Fish and Weeds. Write a Food Chain Comprising All the Given Organisms.

Advertisements
Advertisements

Question

The sea water contains water beetles, tadpole, fish and weeds.

Write a food chain comprising all the given organisms.

 

Advertisements

Solution

 Weeds→ Tadpole →Water beetle→ Fish

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Our Environment - Exercise 1 [Page 230]

APPEARS IN

Lakhmir Singh Biology Part 3 [English] Class 10
Chapter 5 Our Environment
Exercise 1 | Q 74.1 | Page 230

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

State with reason any two possible consequences of elimination of decomposers from the Earth.


The first trophic level in a food chain is always a green plant. Why ?


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


Define decomposers. 


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


At which trophic level a person is feeding when he is eating eggs.


Construct a long food chain.


The decomposers in an ecosystem ______.


In the figure given alongside, the various trophic levels are shown in the form of a pyramid. At which trophic level the maximum energy is available?


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 rabbits and grass plants if the number of foxes decreased?


'If we excessively use pesticides to protect the crops from diseases, then it may cause long-term  damage to mankind'. Justify this statement.


Explain why, the flow of energy in the ecosystem is said to be unidirectional.


A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.
(a) In which organisms the pesticides enter from the polluted water? What is this level of organisms known as?


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

Give one example of a food chain in an aquatic ecosystem?


Give some examples for Biodegradable and Non-biodegradable waste.

S. No. Biodegradable waste Non-biodegradable waste
1. Food Waste Plastic Bottles
2.    
3.    
4.    
5.    

The sequence of who eats whom in an ecosystem is called as ______.


Define – Heterotrophs.


Study the picture given below showing three food chains (a), (b) and (c) and answer the following questions:

  1. Name the type of ecosystems that exist in food chains (b) and (c).
  2. The first trophic level in all food chains is producers. Why? What percentage of solar energy do these producers capture for their use?
  3. Why are the arrows shown in the diagram in one direction only and not vice versa? Justify.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×