Respiration in Aquatic Animals
Respiration in Aquatic Animals
Respiration in Aquatic Animals:
Respiration is the process of breakdown of food material in the presence or absence of oxygen gas. Aquatic organisms use the dissolved oxygen of water for the breakdown the food material. The rate of breathing is more in aquatic organisms than that of the teresstial organisms. There are many organisms that live in water. Some of them have gills and some have other organs for breathing. Some of the examples are :
Breathing in Fish: The respiratory organs in fish are the gills. Fishes take in oxygen in dissolved form. Duriing respiration, water enters the body throught the mouth, and then passes through the gills and comes out of the operculum. The gills take in the oxygen dissovled in the water and give out carbon dioxide.
Dolphins and Whales : These animals do not possess gills for respiration. These possess nostrils which are called blow holes.These organisms breath in through their nostrils and lungs. Dolphins and whales comes to the surface of sea water form time to time to breath in air.
Humans cannot survive under water because they do not possess any gills to make use of oxygen dissolved in water for breathing.
Gills are for | |||
| Right Option : B | |||
| View Explanation |
Which of the following are correct ? (a) Dolphins and whales do not possess gills for respiration. (b) The respiratory organs in fish are the skin | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct ? (a) The respiratory organs in fish are the gills. (b) Dolphins and whales come to the surface of sea water form time to time to breath in air. (c) Human can survive under water because they do not possess any gills to make use of oxygen dissolved in water for breathing. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
