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.
Which of the following are correct : (a) In hydra, water transports food and oxygen to all parts of the body and takes wastes away from the different organs for excretion. (b) Blood is the medium for transport of all the necessary materials to different parts of the body. (c) Blood vessel are of three kinds namely, arteries, veins, and capillaries .. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) In multicellular organisms, the transportation is done by a specialized system known as the circulatory .It consists of the heart, arteries, veins and capillaries. (b) Blood is the medium for transport of all the necessary materials to different parts of the body. (c) The blood vessels are of three kinds namely, arteries, veins, and capillaries,and a thick muscular organ called the heart . | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) Blood is a liquid connective tissue and consists of 50% of water . (b) Blood vessel are of three kinds namely, arteries, veins, and capillaries . | |||
| Right Option : B | |||
| View Explanation | |||
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