Transportation in Animals
Transportation in Animals
Transportation in Animals:
In unicellular animals such as amoeba and paramecium, no special transport system is required. Every part of the organism gets nutrients and oxygen directly through cell diffusion. In hydra, water transports food and oxygen to all parts of the body and takes wastes away from the different organs for excretion.
In multicellular organisms, the transportation is done by a specialized system known as the circulatory system. It consists of the heart, arteries, veins and capillaries. Blood is the medium for transport of all the necessary materials to different parts of the body.
Which of the following are correct ? (a) In unicellular animals such as amoeba and paramecium, no special transport system is required. (b) Every part of the organism gets nutrients and oxygen directly through cell diffusion . | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) Every part of the organism gets nutrients and oxygen directly through cell diffusion . (b) In higher animals including human beings, there is a excretory system for transportation of different substances example digested food, oxygen, carbon dioxide, excretory waste etc.
| |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) In unicellular animals such as amoeba and paramecium, no special transport system is required. (b) In multicellular organisms, the transportation is done by a specialized system known as the respiratory system . (c) Human being have three kind of well developed blood vessels namely, arteries, veins, and capillaries . | |||
| Right Option : C | |||
| View Explanation | |||
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