Advertisements
Advertisements
प्रश्न
The sea water contains water beetles, tadpole, fish and weeds.
Which organism is a secondary consumer?
Advertisements
उत्तर
The water beetle is the secondary consumer in the given food chain.
APPEARS IN
संबंधित प्रश्न
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.
In the following food chain, 20,000 J of energy was available to the plants. How much energy would be available to man in this chain?
Plants → Sheep → Man
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
What are the various steps of food chain called?
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
What is a trophic level?
Construct a long food chain.
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?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Which organism in the above food chain is a (1) primary consumer, and (2) tertiary consumer?
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
Explain why, a food chain usually cannot have more than three or four steps.
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
"Energy flow in food chains is always unidirectional". Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body.
In a given food chain if the amount of energy at the fourth trophic level is 6 kJ, what will be the energy available at the producer level?
If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.
______ obtained energy from the chemical breakdown of dead organisms.
The food chain begins with the energy given by the ______.
Define – Heterotrophs.
