Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
Advertisements
उत्तर
Pesticides enter the food chain at the producer level.
APPEARS IN
संबंधित प्रश्न
What will be the amount of energy available to the organisms of the 2nd trophic level of a food chain if the energy available at the first trophic level is 10,000 joules?
Which of the following are always at the second tropic level of food chains?
What will happen if we kill all the organisms in one trophic level?
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.
Write down a food chain in the sea.
Write down a food chain which ends with humans.
Write down a food chain with five links in it.
At which trophic level a person is feeding when he is eating bread.
Give one example of a simple food chain.
In a food chain, the third trophic level is always occupied by :
(a) carnivores
(b) herbivores
(c) decomposers
(d) producers
Which of the following statement is incorrect?
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms are (i) predators, and (ii) prey?
The following is a food chain that ends with human :
plants → bee → human
Explain how plants provide food for bees.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name one phytoplankton.
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
What could be X?
With the help of a food chain, explain how biological magnification of harmful chemicals can occur.
In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
