Advertisements
Advertisements
प्रश्न
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
Advertisements
उत्तर
Trees and grass belong to the same trophic level as they are both producers.
APPEARS IN
संबंधित प्रश्न
Which of the following are always at the second tropic level of food chains?
Give reason to justify the following: The existence of decomposers is essential in a biosphere.
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
List two biotic components of a biosphere.
Which of the following belong to the same trophic level?
Goat ; Spider ; Plants ; Hawk ; Rat
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
A food chain represents a unidirectional flow of X. What is X?
Define decomposers.
At which trophic level a person is feeding when he is eating roasted chicken.
Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called ______.
Some hunters are roaming in the plush green forest of Africa. They spot a deer and kill it. They decide to roast the deer there and then and eat it. When the hunters had just finished enjoying the feast of roasted deer, a lion attacks them. The lion kills one of the hunters and eats his flesh.
(a) write a food chain which provides food to lion in this case.
(b) Which animal (other than deer) the lion could look for food if he did not get the hunter as prey?
(c) Which other animal in the forest could have been in place of lion?
(d) How does the above food chain differ form the food chain such as : plants → goat → man?
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
What is ten per cent law? Explain with an example.
With the help of a food chain, explain how biological magnification of harmful chemicals can occur.
The harmful chemical which is accumulating in human beings through food chain is :
(a) benzenehexachloride
(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
(d) abscisic acid
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.
Which other organism you could write in place of bird in the above food chain?
"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.
Write the importance of the food chain.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
