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प्रश्न
Name a unicellular animal which uses cilia to move food particles into it mouth.
उत्तर
Paramecium uses cilia to move food particles into its mouth.
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संबंधित प्रश्न
What are heterotrophs? Give one example of heterotrophs.
What is common for Cuscuta, ticks and leeches?
Herbivores depend on plants for their nutrition. These plants contain complex carbohydrates like cellulose and hemicellulose that need to be broken down, whereas carnivores do not eat plants. Hence, small intestine is longer in herbivores than in carnivores.
What are herbivores, carnivores and omnivores? Give two examples of each.
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.
(a) Name the unicellular animal P.
(b) What are (i) Q, and (ii) R?
(c) Name (i) chemical S, and (ii) process T.
(d) 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.
(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.
What type of arrangement exists in the bodies of large animals to meet their oxygen requirements adequately?
The number of heterotrophs found in desert regions is smaller. However, they are found in greater numbers in the sea. Why is this so?
In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
