Which of the following are always at the second trophic level of food chains?Carnivores, Autotrophs or Herbivores.

Academic Biology NCERT Class 10

Herbivores are always at the second trophic level because these organisms depend upon the primary trophic level that is plants to fulfil their energy and nutritional requirements.

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Updated on: 20-Mar-2023

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In a food chain, the third trophic level is always occupied by :(a) carnivores (b) herbivores (c) decomposers (d) producers
Which of the following limits the number of trophic levels in a food chain?(a) insufficient food supply from producer level(b) decrease in energy at higher trophic levels(c) increase in the number of organisms at higher trophic levels(d) accumulation of harmful chemicals at higher trophic levels
Carnivores and Herbivores
Construct A Terrestrial Food Chain Comprising Four Trophic Levels. (b) What Will Happen If We Kill All the Organisms in One Trophic Level? (c) Calculate The Amount of Energy Available to The Organisms at The Fourth Trophic Level If the Energy Available to The Organisms at The Second Trophic Level Is 2000 J.
What do ducks eat, and are they herbivores, or carnivores, or omnivores?
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
What percentage of energy available at the producer level is transferred at successive trophic levels in a food chain?
A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it.(a) Write a food chain comprising all the four organisms mentioned above.(b) Name (i) one herbivore, and (ii) two carnivores, in this food chain.(c) Name the link which is a predator as well as a prey.(d) Name (i) second trophic level, and (ii) third trophic level.(e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently?(f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.
What is meant by trophic level in a food chain? Construct a terrestrial food chain with four trophic levels. The energy flow in a food chain is always unidirectional. Why?
Which of the following belong to the same trophic level? Goat; Sdivider; Plants; Hawk; Rat.
Which of the following belong to the same trophic level ? Tree; Frog; Snake; Grass; Lizard.
(a) Define trophic level. Draw the food chain with four trophic levels.(b) What will happen if we kill all the organisms in one trophic level?
(a) What are herbivores, carnivores and omnivores? Give two examples of each.(b) Classify the following into herbivores, carnivores and omnivores: Lion, Man, Dog, Goat, Crow, Elephant, Snake, Hawk, Rabbit, Deer(c) Name the five steps which occur in the process of nutrition in animals.
Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the :(a) ecosystem (b) food web (c) ecological pyramid b> (d) food chain
State whether 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.

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