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Laxmi does various activity like running...

Laxmi does various activity like running swimming which involved breathing. Can you explain the regulation of her breathing?

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The coutries which do not have oil reservatirs in their land import oil from other countries. But sometimes during transporting oil through sea routes, accidental oil spilling occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removel of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp. and Alcanivarax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction carbon with oxygen resulting in formation of CO_(2) and water. Like oil spills cause damage to aquatic life, platic forms the major part of the grabage on land. Plastics are difficult to degrade as they are made up of PET. By research, various species like Vibrio and Idenoella sakaiensis which can degred PET.By research, various species like Vibrio and Ideonella sakaiensis which can degrade PET have been identified. There are cartain species of microbes which can decompose rubber from garbage. Based on the given paragraph answer the following question. Name any two species of microbes which can degrade rubber from

The coutries which do not have oil reservatirs in their land import oil from other countries. But sometimes during transporting oil through sea routes, accidental oil spilling occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removel of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp. and Alcanivarax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction carbon with oxygen resulting in formation of CO_(2) and water. Like oil spills cause damage to aquatic life, platic forms the major part of the grabage on land. Plastics are difficult to degrade as they are made up of PET. By research, various species like Vibrio and Idenoella sakaiensis which can degred PET.By research, various species like Vibrio and Ideonella sakaiensis which can degrade PET have been identified. There are cartain species of microbes which can decompose rubber from garbage. Based on the given paragraph answer the following question. How are aquatic organisms affected by oil spills in oceans ?

A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution which was a fuming liquid. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?

There is a myth that immediately after heavy rains in forest, mushrooms appear in large number and make a very large ring or circle, which may be several meters in diameter. These are called as 'fairy rings'. Can you explain this myth of fairy rings in biological terms?

The countries which do not have oil reservoirs in their land import oil from other countries. But sometimes during transporting oil through sea routes, accidental oil spilling occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removel of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp. and Alcanivarax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction carbon with oxygen resulting in formation of CO_(2) and water. Like oil spills cause damage to aquatic life. plastic forms the major part of the garbage on land. Plastics are difficult to degrade as they are made up of PET. By research, various species like Vibrio and Idenoella sakaiensis which can degrade PET have been identified. There are certain species of microbes which can decompose rubber from garbage. Based on the given paragraph answer the following question. Which type of chemical compounds are degraded by microbes used for clearing oil spills ?

The countries which do not have oil reservoirs in their land import oil from other countries. But sometimes during transporting oil through sea routes, accidental oil spilling occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removel of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp. and Alcanivarax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction carbon with oxygen resulting in formation of C O 2 and water. Like oil spills cause damage to aquatic life. plastic forms the major part of the garbage on land. Plastics are difficult to degrade as they are made up of PET. By research, various species like Vibrio and Idenoella sakaiensis which can degrade PET have been identified. There are certain species of microbes which can decompose rubber from garbage. Based on the given paragraph answer the following question.Why should there be a ban on plastic bags ?

Questions based on paragraph : Study the following incident : Swara and yash were looking in a water filled vessel . They could see their images clearly in the still water . At that instant , yash threw a stone in the water . Now their images were blurred . swara could not understand the reason for the blurring of the images . : explain the reason for blurring of the images to swara by answering the following questions : Which types of reflection of light can you notice from this ?

Use your brain power! Can you tell : Explain why does the lime water turns milky in the reaction of acetic acid with sodium carbonate.

CHETANA PUBLICATION-Respriration and circulation-EXCERCISE
  1. Laxmi does various activity like running swimming which involved breat...

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  2. The muscular structure that separated the thoracic and abdominal cavit...

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  3. What is the minimum number of plasma membrane that oxygen has to diffu...

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  4. …… is a sound producing organ,

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  5. The maximum volume of gas that is inhale during breathing in addition ...

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  6. ….. Muscles contract when the external intercostal muscles contract

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  7. Movement of cytoplasm in unicellular organisms is called……

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  8. Which of the following animals do not have closed circulation?

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  9. Diapedesis is performed by…..

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  10. Pacemaker of heart is …… .

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  11. Which of the following is without nucleus?

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  12. cockroach shows which kind of circulatory system?

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  13. Diapedesis can be seen in …. Cell.

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  14. Opening of inferior vena cava is guarded by ….

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  15. …. wave in ECG represents atrial depolarization.

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  16. The fluid seen in the intercellular spaces in Human is….

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  17. Select the correct alternative and write the answer: Erythrocytes of t...

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  18. Select the correct alternative and write the answer: During systole

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  19. Select the correct alternative and write the answer: Thickening of art...

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  20. Answer the following questions: Name any one main lymphatic duct.

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  21. Answer the following questions: Name any pace maker of human heart.

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