Advertisements
Advertisements
Question
The sea water contains water beetles, tadpole, fish and weeds.
Which organism is a secondary consumer?
Solution
The water beetle is the secondary consumer in the given food chain.
APPEARS IN
RELATED QUESTIONS
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer?
Plants → Deer → Lion
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
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?
Match the terms given in column I with the terms given in column II and column III having the same meaning :
Column I | Column II | Column III |
(1) Secondary consumer | Herbivore | 1st trophic level |
(2) Primary consume | Autotroph | 3rd trophic level |
(3) Producer | Carnivore | 4th trophic level |
(4) Tertiary consumer | Large carnivore | 2nd trophic level |
The following statement is true or false :
Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level in a food chain.
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
Give one example of a food chain in an aquatic ecosystem?
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
DDT was sprayed in a lake to regulate breeding of mosquitoes. How would it affect the trophic levels in the following food chain associated with a lake? Justify your answer.