Advertisements
Advertisements
प्रश्न
In a food chain, the third trophic level is always occupied by
विकल्प
carnivores
herbivores
decomposers
decomposers
Advertisements
उत्तर
carnivores
Explanation -
A food chains always starts with plants or producers so they occupy the first trophic level. The plants in turn, are consumed by herbivores which occupy the second trophic level. Primary carnivores eat the herbivores and occupy third trophic level.
APPEARS IN
संबंधित प्रश्न
"Energy flow in a food chain is unidirectional" Justify this statement.
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
The following statement is true or false :
In biology, human beings are called producers.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Fill in the following blank with suitable word :
Decomposer organisms are..........in their action.
Draw the food chain with four trophic levels.
At which trophic level a person is feeding when he is eating apple.
Which of the following statement is incorrect?
What would happen to the number of grass plants and foxes if the number of rabbits decreased?
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 |
What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
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
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :
(a) cat
(b) plants
(c) dog
(d) seed-eating bird
An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is :
(a) water beetles
(b) tadpoles
(c) weeds
(d) fish
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?
What would happen if an organism is removed from the food chain?
The food chain begins with the energy given by the ______.
What is Autotrophs?
In the following food chain, only 2J of energy was available to the peacocks. How much energy would have been present in Grass? Justify your answer.
GRASS → GRASS HOPPER → FROG → SNAKE → PEACOCK
