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Ask QuestionPosted by U.Tharun Uppara 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Parasites are an incredibly varied group of organisms that live within host cells. They are smaller than their host organism and reproduce faster by causing more damage to the host.
For example- Tapeworms, that are flat, segmented worms, live in the intestines of animals by absorbing the host’s nutrients.
Posted by Lata Mehta 5 years, 2 months ago
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Ss Sohel 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Lysosomes are membrane bound cellular organelles. They possess many hydrolytic, proteolytic enzymes for the digestion of cellular waste, debris as engulfed, killed viruses or bacteria. The lysosomes are called as suicide bags of the cell because they digest its own cellular content when the pH of the cell alters.
Posted by Pratyusha Pallavi Mangaraj 5 years, 2 months ago
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Ss Sohel 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming. Alexander Fleming, a Scottish scientist discovered the first antibiotic & named it ‘Penicillin’.
Posted by Disha Chauhan 5 years, 2 months ago
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Introduction To Studies 5 years, 2 months ago
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Introduction To Studies 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Plastic is a polymer (like the synthetic fibre) which can be moulded into different shapes. The word ‘plastic’ originates from the Greek word ‘plastikos’ which means ‘that can be moulded or shaped’.
Posted by Manas Bhardwaj 5 years, 2 months ago
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Meghna Thapar 5 years, 2 months ago
Science is observing, studying and experimenting to learn how the world works. ... An example of science is biology. Science is often defined as a set of processes or tools, the most notable of which being the scientific method. So “Doing science” could be roughly and problematically defined as carrying out scientific processes, like the scientific method, to add to science's body of knowledge.
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Yuvraj Singh 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Electrons are the negatively electrically charged particles that whiz around inside an atom.
They were discovered by the English physicist J.J.Thomson in 1897 during some experiments with cathode ray tubes.
Posted by Nandu Rao 5 years, 2 months ago
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Nandu Rao 5 years, 2 months ago
Posted by Gurinder Singh 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
The 4 R principle is:
4R means Reduce, Reuse, Recycle and Restore
Reduce - We must reduce the use of resources as much as possible and save them for the future generation. Reducing the usage is a method of conservation of resources.
Reuse - Resources can be reused wherever possible. We need not produce resources on large scale which may lead to exploitation of natural resources. Instead we can reuse them.
Recycle - Resources can be recycled wherever possible so that they can be used again and again.
Restore - We can restore resources into their original state, wherever possible.
Posted by Smriti Singh 5 years, 2 months ago
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Shristi Saikia 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Microorganisms- A living organism that is very minute to be seen by the naked eye, especially a single celled organism, such as a bacterium is called microorganism. Microorganisms are classified into four major groups mainly bacteria, fungi, protozoa and some algae.
Posted by Soumya Khened 5 years, 2 months ago
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Meghna Thapar 5 years, 2 months ago
Crops such as grains, vegetables, and fruits are the cultivated plants or agricultural products harvested by people for human or animal consumption as food.
Types of crop:
Different crops grow well in different seasons of the year. Based on the seasons, all the crops are categorized into two main groups:
- Kharif crops: The crops which are sown in rainy season are called kharif crops. The growing of kharif crops starts in June-July at the beginning of south-west monsoon because these crops need substantial amount of water. Examples of kharif crops are paddy, maize, millet, soyabean, groundnut and cotton. Such crops are also called summer crops.
- Rabi crops: The crops grown in winter season are called rabi crops. The time period of rabi crops is generally from October to March. The sowing of rabi crops begins at the beginning of winter (October – November) and the crops are harvested by March or April. Examples of rabi crops are wheat, peas, mustard and linseed.
Posted by Soumyashree Pati 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Plants are not capable of directly utilizing atmospheric nitrogen. A few bacteria help in converting atmospheric nitrogen into forms that can be used by plants. Plants acquire nitrates from the soil through their roots, and transform them into proteins. When animals feed on these plants, the proteins enter their bodies. Later, when these animals die, the nitrogen compounds inside their bodies break down into ammonia and this process is known as ammonification.
The bacteria in the ammonification process is known as ammonifying bacteria.
Posted by Soumyashree Pati 5 years, 2 months ago
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Shristi Saikia 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Main causes of increase in concentration on green house gas are the following
1) combustion of fossil fuels in industries
2) use of fossil fuels in automobile
3)deforestation
4) increase in population of humans
5) careless nature of humans
Posted by Bablu Sharma 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Rayon is a semi synthetic fibre which is woven with some natural fibres.
Nylon, on the other hand, is a synthetic fiber completely.
The basic difference between the two is their response to wear and tear.
Rayon is more susceptible to wrinkles and tears whereas nylon has great resistance for it.
Posted by Lokesh Patil 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Those chemicals which are obtained from petroleum and natural gas are called petrochemicals. For Ex:Methyl alcohol,ethyl alcohol,formaldehyde,acetone,acetic acid,ethylene,benzene,toluene,vinyl chloride etc
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Somya . 5 years, 2 months ago
1Thank You