हिंदी

One of the Following is Not a Consumer. this One is : (A) Giraffe (B) Antelope (C) Algae (D) Alligator

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प्रश्न

One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator

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उत्तर

algae
Algae are producers, which prepare their food themselves through photosynthesis. They are not consumers.

 
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अध्याय 5: Our Environment - Exercise 1 [पृष्ठ २२९]

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लखमीर सिंग Biology Part 3 [English] Class 10
अध्याय 5 Our Environment
Exercise 1 | Q 67 | पृष्ठ २२९

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संबंधित प्रश्न

Why are green plants called producers?


The first trophic level in a food chain is always a green plant. Why ?


List two important roles play in the environment by decomposers.


In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?

Plants → Rats → Snakes → Hawks
 


A food chain represents a unidirectional flow of X. What is X?


At which trophic level a person is feeding when he is eating eggs.


One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito


The sea water contains water beetles, tadpole, fish and weeds.

Which organisms can trap solar energy to make food?


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?


Will the levels of biological magnification be different at different levels of the ecosystem?


What does garbage consist of?


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


What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent


Your mother always thought that fruit juices are very healthy for everyone. One day she read in the newspaper that some brands of fruit juices in the market have been found to contain certain level of pesticides in them. She got worried as pesticides are injurious to our health.
(a) How would you explain to your mother about fruit juices getting contaminated with pesticides?
(b) It is said that when these harmful pesticides enter our body as well as in the bodies of other organisms they get accumulated and beyond a limit cause harm and damage to our organs. Name the phenomenon and write about it.


Bacteria and fungi are called decomposers.


We should reduce the use of the plastic bags, bottles etc. because ______.


If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.


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?


Animals that eat both plants and animals are called as Carnivores.


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