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Posted by Nirbhay Singh 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
| Kinetic Energy | Potential Energy |
| Kinetic energy is the kind of energy present in a body due to the property of its motion | Potential Energy is the type of energy present in a body due to the property of its state |
| It can be easily transferred from one body to another | It is not transferrable |
| The determining factors for kinetic energy are Speed or velocity and mass | Here, the determining factors are Height/ distance and mass |
| Flowing water is one of the examples for kinetic energy | Water present at the top of hill is an example of potential energy |
| It is relative with respect to nature | It is non-relative with respect to nature |
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Anubhav Pratap Singh 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Infectious agents are the organisms which cause disease are called as infectious agents. They obtain nourishment from the host. e.g. Bacteria, Viruses, Fungi, Protozoa, Helminths.
* Bacteria cause diseases like typhoid, cholera, tuberculosis, anthrax, pimples and peptic ulcers.
* Viruses cause the common cold, influenza, dengue fever, SARS and AIDS.
* Fungi cause skin infections.
* Protozoa causes malaria, kala – azar and sleeping sickness.
* Helminth worms cause intestinal infections or elephantiasis.
Posted by Lakshmi Rajput 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
| Plant cells | Animal cells |
| Plant cells possess cell wall. | Animal cells do not possess cell wall. |
| Chloroplasts are present in plant cells. | Animal cells do not possess chloroplasts. |
| Plant cells are almost rectangular in shape. | Animal cells are round in shape. |
| Plant cells possess large vacuoles. | Animal cells have many small vacuoles. |
| Cilia rarely occur in plant cells. | Cilia are present in animal cells. |
| Higher plants do not possess centrioles. | Animal cells do contain centrioles. |
| Plant cells have no or less number of lysosomes. | Animal cells possess many number of vacuoles. |
Posted by Adarsh Jha 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
Plant tissue
1) they have a stationary phase.
2) they do not require lot of energy
3) they have more dead cells as it produces mechanical energy
4) they are able to make their own food
Animal tissue
1) they've locamative phase
2) they require a lot of energy
3) they have more living cells.
4) they cannot make their own food and depend on other organism
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Yogita Ingle 7 years, 6 months ago
A railway sleeper is a rectangular support that is usually kept perpendicular to the tracks. Sleepers are known by a few other names too, like a railroad tie or a crosstie. These are usually made of wood or pre-stressed concrete, although the latter is more widely used today. The function of railway sleepers is to hold the rails upright and properly spaced.
Posted by Nirbhay Singh 7 years, 6 months ago
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Yogita Ingle 7 years, 6 months ago
The cells of parenchyma have thin cell wall. They are loosely packed; with lot of intercellular spaces between them. Parenchyma makes the largest portion of a plant body. Parenchyma mainly works are packing material in plant parts. The main function of parenchyma is to provide support and to store food. In some plant parts, parenchyma has chlorophyll as well. In that case, parenchyma carries out photosynthesis and is then termed as chlorenchyma. In aquatic plants, large air cavities are present in parenchyma. This provides buoyancy to the plant, and then the parenchyma is known as aerenchyma.
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Yogita Ingle 7 years, 6 months ago
Notochord is the chief distinguishing feature of Chordates, which is a dorsal longitudinally running rod. It lies between the dorsal nerve tube and the gut. It is mainly replaced during embryonic development by bony vertebrae of the vertebral column, or backbone in higher chordates.
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