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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
All the animals can be divided into three groups on the basis of their eating habits. Name the three groups.
Arrange the following processes involved in the nutrition in animals in the correct order (in which they take place):
Assimilation, Egestion, Ingestion, Absorption, Digestion
What substances enter into the food vacuole in Amoeba to break down the food?
From which part of the body, undigested food is egested in Amoeba?
What are heterotrophs? Give one example of heterotrophs.
Organisms that cannot prepare their own food.
Name the five steps which occur in the process of nutrition in animals.
Which of the following is the correct statement?
(a) heterotrophs synthesise their own food
(b) heterotrophs utilize solar energy for photosynthesis
(c) heterotrophs do not synthesise their own food
(d) heterotrophs are capable of converting carbon dioxide and water into carbohydrates
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.
(a) What are animals like X known as?
(b) What are animals Y known as?
(c) Which animal, X or Y, has a longer small intestine? Why?
(d) Name one animal which is like X.
(e) Name one animal which is like Y.
In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
