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प्रश्न
The number of heterotrophs found in desert regions is smaller. However, they are found in greater numbers in the sea. Why is this so?
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उत्तर
The conditions in deserts are extremely difficult for survival of organisms. Not all kinds of organisms can survive in such harsh climatic conditions, which means there are only few types of organisms which would be found in this region. Since, there are not many kinds of plants and animals which are found in this region, heterotrophs would not be able to survive and would die of starvation. That is why less heterotrophs are found in desert areas. However, in case of a habitat like sea, there are plenty of organisms which are found in the region ranging from aquatic plants, to small fishes to big fishes. It is an environment which supports the survival of heterotrophs, and thus more heterotrophs are found in this region.
संबंधित प्रश्न
The food synthesised by the plants is stored as ______.
How does Amoeba engulf the food particle?
From which part of the body, undigested food is egested in Amoeba?
Name a unicellular animal which uses cilia to move food particles into it mouth.
Name the five steps which occur in the process of nutrition in animals.
| A unicellular animal P having no fixed shape ingests a food particle by forming temporary finger-like projections Q. The food particle is engulfed with a little surrounding water to form a temporary stomach R inside it. The chemicals S from surrounding cytoplasm enter into R and break down food into small and soluble molecules by chemical reactions. The digested food is absorbed directly into cytoplasm by the process T. The undigested food is thrown out of the body by the rupture of a cell organelle U in a process called V. |
- Name the unicellular animal P.
- What are (i) Q and (ii) R?
- Name (i) chemical S, and (ii) process T.
- Name (i) organelle U, and (ii) process V.
| X is a wild animal which eats only the flesh of other animals whereas Y is a domestic animal which feeds mainly on green grass. |
- What are animals like X known as?
- What are animals Y known as?
- Which animal, X or Y, has a longer small intestine? Why?
- Name one animal which is like X.
- Name one animal which is like Y.
What type of arrangement exists in the bodies of large animals to meet their oxygen requirements adequately?
In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
Select the correct statement
