Algae
Algae
Algae comes under the division thallophyta.
Characteristics of Algae:
Algae are simple aquatic organisms which are capable of photosynthesis. Some algae, like Chlamydomonas, are unicellular. Some form colonies like Volvox, and filaments like Spirogyra.
Green Algae: Chlamydomonas and Spirogyra are green algae and they live in freshwater. It is a large, informal grouping of algae having the primary photosynthetic pigment chlorophyll. Some of the green algae are good source of proteins, lipids, fibres and omega 3 fatty acids.
Brown Algae: These are marine algae. They are the most complex type of algae. Example: Laminaria , Fucus, Sargassum
Red Algae: They are mostly marine. Gel forming substance like agar is extracted from this algae. Example: Geladium and Gracilaria
Lichens: Lichens are a symbiotic association of fungi and algae. Remember that particular lichen is an association of a specific fungus and a specific alga. Both benefit from each other. They grow on rocks, stems of trees, old walls and so on, and may be grey-green or brightly coloured. The fungus forms most of the plant body, absorbs water and nutrients from the surroundings, and provides these to its partner. The alga manufactures food from the raw materials and supplies it to the fungus. They are sensitive to the pollution. Lichens are sensitive to sulphur dioxide. Due to its absorbative properties they they can accumulate a large amount of sulphur.
Lichen is a symbiotic association between _________ and ____________ . | |||
| Right Option : A | |||
| View Explanation | |||
_______________ algae considered as ancestors of land plants. | |||
| Right Option : C | |||
| View Explanation | |||
Spirogyra is also called _________________. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
Abhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thMy 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
7thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thIt 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
10thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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Eshan Arora
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Hiya Gupta
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Yogansh Nyasi
7thOne 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.
Aman Kumar Shrivastava
10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thI 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
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Om Umang
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Prisha Gupta
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thAbhyas 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
10thAbout 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
8thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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10thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
