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Ask QuestionPosted by Paritosh Sah 6 years, 5 months ago
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Posted by Arpita Singh 6 years, 5 months ago
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Gaurav Seth 6 years, 5 months ago
Amoeba obtains its nutrition in a heterotrophic mode. Amoeba feeds on plankton and diatoms present in water. It can form arm- like structures called pseudopodia, extending from any part of its body as it is shapeless. When it senses food in its surroundings it extends its pseudopodia in that direction and moves towards it. Then it engulfs the food with its pseudopodia. When the food enters its body the amoeba forms a food vacuole around it which contains certain enzymes to digest the food. 
Posted by Moumita Nandi 6 years, 5 months ago
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Posted by Sanjay Dutt 6 years, 5 months ago
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Posted by Bhaiya Patil 6 years, 5 months ago
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Posted by Levis Robinson 6 years, 5 months ago
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Yogita Ingle 6 years, 4 months ago
Convection is defined as the transfer of heat by the actual movement of molecules of a medium.
Posted by Dipesh Doshi 6 years, 5 months ago
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Arpita Singh 6 years, 5 months ago
Chandan Singh 6 years, 5 months ago
Vedanth K 6 years, 5 months ago
Yogita Ingle 6 years, 5 months ago
The word Heterotrophic is the combination of two words i.e. Hetero + Trophos. Hetero means ‘others’ and ‘trophos’ means nourishment. If organisms depend on others for their food, such a mode of nutrition is called Hetetrophic Nutrition.
Animals cannot make their food themselves. They depend for food upon plants. Therefore, nutrition in animals is called Hetetrophic Nutrition. Animals are known as Heterotrophs.
Posted by Kush Joshi 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
Fleece is a type of hair found sheeps , yaks , alpacas , some goats , rabbits and several other types of animals...
Whereas
Hair is basically a form of skin....
Posted by Debashrita Sahoo 6 years, 5 months ago
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Gaurav Seth 6 years, 5 months ago
- A parasite is an organism that lives in another organism, called the host, and often harms it. It depends on its host for survival.
- Parasites live on or in other organisms and thrive to the detriment of their host.
- Many different parasites can affect humans, and they can pass on diseases such as malaria and trichomoniasis.
Posted by Udhyamathi Mathi 6 years, 5 months ago
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Yogita Ingle 6 years, 4 months ago
Fleece is a type of hair found sheeps , yaks , alpacas , some goats , rabbits and several other types of animals...
WHEREAS
Hair is basically a form of skin....
Posted by Nagendra Asapu 6 years, 5 months ago
- 2 answers
Yogita Ingle 6 years, 5 months ago
A convection current is a process which involves the movement of energy from one place to another. It is also called to as convection heat transfer. The Convection currents tend to move a fluid or gas particles from one place to another. These are created as a result of the differences occurring within the densities and temperature of a specific gas or a fluid.
Posted by Aditya Singh 6 years, 5 months ago
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Posted by Divya Shree 6 years, 5 months ago
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Posted by Parmila Parihar 6 years, 5 months ago
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Posted by Shofia Farvana 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
The process by which plants make their own food in the presence of sunlight, carbon-dioxide present in air, water, minerals and chlorophyll present in leaves is termed as photosynthesis.
Posted by 09 Sam 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
Some plants eat insects. Such plants are called insectivorous plants. They trap and digest the insects. Pitcher plant is the example of an insectivorous plant
Trushna Thombare 6 years, 5 months ago
Posted by Rithul Kishore 6 years, 5 months ago
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Posted by Satbeer Singh 6 years, 5 months ago
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Meghna Thapar 5 years, 10 months ago
Processing fibres into wool:
The wool which is used for knitting sweaters and weaving shawls involves following steps:
- Shearing: The process of removing hair from the body of a sheep in the form of fleece is called shearing. Usually the hairs are removed during the hot weather which enables sheep to survive without their protective coat of hair. The hair provides woolen fibres and than are processed to obtain woolen yarn. Shearing does not hurt the sheep as the upper most layer of skin is dead.
- Scouring: The process of washing the fleece that removes dust, dirt, dried sweat and grease is called scouring. This process makes the fleece of sheep clean. The scoured fleece is then dried.
- Sorting: The process of separating the fleece of a sheep into sections according to the quality of woolen fibres is called sorting. The hairy skin is sent to a factory where hair of different textures is sorted. The same quality wool obtained from the fleece of large number of sheep is than mixed together.
- Dyeing: The hair of sheep is white, brown, or black in color. The white woolen fibres obtained by sorting can be dyed in different colors.
- Combing: This is a process of preparing woolen fibres for spinning the yarn. It is done by using combs having metal teeth.
- Spinning: The long woolen fibres are spun into thick yarn called wool.
Posted by Nur Jaha 6 years, 5 months ago
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Aditya Singh 6 years, 5 months ago
Posted by Satbeer Singh 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
Posted by Renu Kumari 6 years, 5 months ago
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Neena Yadav 6 years, 5 months ago
Posted by Satbeer Singh 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
Sericulture involves rearing of silkworms to obtain silk from them. Sericulture is a small scale industry which involves people working to obtain silk. Silk worm is reared right from its egg stage cocoons are collected. These are boiled in hot water to kill the worms in it. Silk coiled in the cocoon is collected, washed, dyed, reeled onto threads.These silk threads are used to weave cloth form them.
Posted by Satbeer Singh 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
- Fleece is a type of hair found sheeps , yaks , alpacas , some goats , rabbits and several other types of animals...
- Hair is basically a form of skin....
Posted by Satbeer Singh 6 years, 5 months ago
- 1 answers
Yogita Ingle 6 years, 5 months ago
As we know that silk is obtained from cocoon made by silkworm. Cocoon is made up of small filaments generally called as silk filament or silk fibre. Silk filament or fiber is a double strand of fibroin(a kind of protein), which is held together by a gummy substance called sericin or silk gum. The cocoon are put in a series of hot and cold immersions to soften the sericin and permitting the unwinding of the filament as one continuous thread. The process of unwinding the silk filaments from the cocoon and combining them together to make a thread of raw silk is called reeling. In this way silk filament is converted to silk thread and we can say that silk fibre is kind of filament fibre.
Posted by Satbeer Singh 6 years, 5 months ago
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Chandan Singh 6 years, 5 months ago
Posted by Satbeer Singh 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
Uses of wool:
i) It is used to make sweaters, shawls and other warm clothes.
ii) It is used to make blankets, upholstery, carpets etc.
iii) It used in sounding proofing.
Posted by Priyadhare Gowda 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
The inner walls of the small intestine have thousand of finger-like outgrowths are called villi.
Location: These are found in small intestine.
Functions of villi :
- The villi increase the surface area for absorption of the digested food.
- The food is grinded by the contraction and expansion of villi.
Posted by Elizabeth John 6 years, 6 months ago
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Posted by Jeswin Sojan 6 years, 6 months ago
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Posted by Caroline Oliver 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
There are four kinds of teeth in human beings situated in each jaw:
(i) Incisor: They are four in number and help to cut and bite food.
(ii) Canine: They are two in number and help in piercing and tearing of food.
(iii) Premolar: They are four in number and help in chewing and grinding the food.
(iv) Molar: They are six in number and also help in chewing and grinding the food like premolar teeth.
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Sia ? 6 years, 5 months ago
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