मराठी

A Food Chain Occurring in the Sea Which Provides Food for Many People Can Be Written as : Phytoplankton → Zooplankton → X → Y Name One Phytoplankton. - Science

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प्रश्न

A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y

Name one phytoplankton.

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उत्तर

Algae are phytoplankton.

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पाठ 5: Our Environment - Exercise 1 [पृष्ठ २३०]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 5 Our Environment
Exercise 1 | Q 76.1 | पृष्ठ २३०

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संबंधित प्रश्‍न

Which of the following constitute a food-chain?


Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects


Draw the food chain with four trophic levels.


What will happen if we kill all the organisms in one trophic level?


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.


A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part she saw a water beetle holding a tadpole in its jaws.
(a) Construct a food chain for the pond.
(b) How many links are there in this chain?


Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place


In a food chain, the initial organism is usually :
(a) photosynthetic
(b) herbivore
(c) saprophytic
(d) parasitic


The decomposers in an ecosystem ______.


Which of the following group of organisms are not constituents of a food chain?

  1. grass, lion, rabbit, wolf
  2. plankton, man, fish, grasshopper
  3. wolf, grass, snake, tiger
  4. frog, snake, eagle, grass, grasshopper

In the figure given alongside, the various trophic levels are shown in the form of a pyramid. At which trophic level the maximum energy is available?


A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y

Name the organism which Y could be.


Why are there rarely more than five links (or five organisms) in a food chain?


Fill in the following blank with suitable word :

Lettuce → ............. → Fox


What is ten per cent law? Explain with an example.


How much energy will be available to hawks in the food chain comprising hawk, snake, paddy and mice, if 10,000 J of energy is available to paddy from the sun?


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 organism will have the maximum amount of pesticides accumulated through the food chain? What is this process known as?


A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in ______.


Observe the food web and answer the questions given below:

Why do all food chains start with plants?


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