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Ask QuestionPosted by Yash Bajpai 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Pseudopodia are temporary and cytoplasm-filled parts of the cell wall that are able to change their form in order to the move. Amoeba, a unicellular animal, engulfs tiny particles of food by using pseudopodia. Amoeba surrounds the food by pseudopodia and then makes a food vacuole to engulf the food.
Posted by Hemant Khandale 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
There are four types of teeth in our mouth.
- Incisors: These are flat and chisel-shaped teeth. They lie in the front of the mouth. There are eight incisor teeth; four in the upper jaw and four in the lower jaw. The incisor teeth are well adapted for cutting and biting of food items.
- Canines: These are round shaped, sharp and pointed teeth. Canines are well adapted to hold and tear the food. There are four canine teeth found in human.
- Premolars: There are two premolars on each side of each jaw. Premolars help in crushing and grinding the food. There are 8 premolar teeth in an adult human.
- Molars: There are two molars on both sides in both the jaws. They have almost a flat surface with small projections. These teeth are meant for fine grinding of food.
Posted by Himanshu Dogiwal 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases The state of matter distinguished from the solid and liquid states. Gases have the ability to diffuse readily and to become distributed uniformly throughout any container. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.
Posted by Atharv Khot 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Gastric glands present in the wall of the stomach.The gastric glands release hydrochloric acid, pepsin and mucus.
Hydrochloric acid:
- It helps in the breakdown of food particles.
- It creates an acidic environment which facilitates the action of the enzyme pepsin.
Pepsin: It helps in digesting protein.
Mucus: It protects the inner lining of the stomach from the action of the acid under normal condition.
Posted by Riddhima Agarwal 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Life Cycle – Silk Moth: Actually silkworms are not worms, but the larvae or caterpillars hatched from the eggs of the silk moth. The life history of a silk moth starts when a female silk moth lays eggs.
The larvae or caterpillars hatched from the eggs of the silk moth. These silkworms feed on fresh mulberry leaves the silkworm grows in size and then becomes a pupa.
In the pupa stage, it weaves a net to hold itself. It then swings its head from side to side, secreting a fibre that hardens on contact with air. This fibre is made of a protein and becomes the silk fibre.
The caterpillar covers itself completely with silk fibre and turns into a pupa, this covering is known as the cocoon. The moth continues to develop within the cocoon. The silk thread or yarn is obtained from the silk moth’s cocoon.
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Yogita Ingle 7 years, 6 months ago
The breeding, rearing, and transplantation of fish by artificial means is called pisciculture, in other words, fish farming. It is the principal form of aquaculture, while other methods may fall under mariculture. It involves raising fish commercially in tanks or enclosures, usually for food.
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Yogita Ingle 7 years, 6 months ago
0 (zero) is the rational number which does not have a reciprocal.
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Meghna Thapar 5 years, 10 months ago
Food chain: The producers, consumers and decomposers are connected to each other in the ecosystem where one organism eats another which in turn is eaten by the third one. This sequence in which a producer is eaten by an herbivore and the herbivore is preyed upon by a carnivore is called a food chain.
Example – A deer eats grass and is eaten by a lion, tiger or leopard. Here, grass is producer, deer is a primary consumer (herbivore) and lion or tiger is a secondary consumer (carnivore).
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Yogita Ingle 7 years, 6 months ago
Sorting: After scouring, fleece is sorted according to texture. This process is called sorting.
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