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Ask QuestionPosted by Aram Hasan 5 years, 8 months ago
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Posted by Aram Hasan 5 years, 8 months ago
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Meghna Thapar 5 years, 7 months ago
An echocardiography or an echocardiogram is a noninvasive (the skin is not pierced) procedure used to assess the heart's function and structures. During the procedure, a transducer (like a microphone) sends out sound waves at a frequency too high to be heard. When the transducer is placed on the chest at certain locations and angles, the sound waves move through the skin and other body tissues to the heart tissues, where the waves bounce or "echo" off of the heart structures. These sound waves are sent to a computer that can create moving images of the heart walls and valves.
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Meghna Thapar 5 years, 7 months ago
Meristematic tissues are growth tissues and found in the growing regions of the plant. According to their position in plant, meristems are apical, lateral and intercalary.
When the cells take up a specific role and lose the ability to divide they form a permanent tissue. This process of taking up a permanent shape, size, and a function is called differentiation. Thus, cells of meristematic tissue differentiate to form different types of permanent tissue. Permanent tissues are of two types – simple permanent tissues and complex permanent tissues.
Posted by Rohit Sutar 5 years, 8 months ago
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Dhruv Kohli 5 years, 8 months ago
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Meet Saab 5 years, 8 months ago
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Meghna Thapar 5 years, 7 months ago
Host cell is a living cell invaded by or capable of being invaded by an infectious agent (such as a bacterium or a virus). It is a cell that is infected by a virus or another type of microorganism.
Posted by Himanshu Antil 5 years, 8 months ago
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Posted by Himanshu Antil 5 years, 8 months ago
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Meghna Thapar 5 years, 7 months ago
Adipose connective tissue – It is basically an aggregation of fat cells called adipocytes. It is found below the skin and between internal organs. The cells of this tissue are filled with fat globules. Storage of fats also lets it act as an insulator. It keeps the visceral organs in position and forms shock-absorbing cushions around kidneys and eye balls.
Posted by Rijah Manahil Tariq 5 years, 8 months ago
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Meghna Thapar 5 years, 7 months ago
A homogeneous mixture of two or more substances which are chemically non-reacting, whose composition can be varied within certain limits, is called a solution.
Solution = Solute + Solvent
Posted by Rijah Manahil Tariq 5 years, 8 months ago
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Meghna Thapar 5 years, 7 months ago
Mixture is of two types – homogenous mixture and heterogenous mixture.
- A mixture which has uniform composition and properties throughout its mass is called a homogeneous mixture. Example: All solutions such as sugar solution, salt solution etc.
- A mixture which has a different composition and properties in different parts of their mass is called a heterogeneous mixture. Example: Suspension (sand mixed with salt, sugar in oil) and colloids (milk in water).
Posted by Piyush Giri 5 years, 8 months ago
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Piyush Giri 5 years, 8 months ago
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Rijah Manahil Tariq 5 years, 8 months ago
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Posted by Aram Hasan 5 years, 8 months ago
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Aram Hasan 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
Infectious Diseases: The diseases which spread due to infection by micro-organisms are called infectious diseases.
When a disease causing organism enters our body it causes infection, it multiplies and grows in the body called host and micro-organisms multiplies in the host body.
For Example: Tuberculosis, tetanus, Common cold, AIDS, etc.
Posted by Suma Babu 5 years, 8 months ago
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Posted by Anvi Bansal 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
No, it doesn't. Take a object of mass m. Suppose it has travelled a height h. Let the gravitational force be g. In case 1, lt it travel from A to B in a straight path. In case 2, let it travel from A to C in a zig-zag manner, and then to point B. However, in both cases the potential energy will be mgh.
Posted by Mehul Jain 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The number of atoms present in a single molecule is termed as its atomicity. It can be classified into three types.
- The molecules of many elements are composed of only a single atom of that element. They are termed as monoatomic. For instance, Ar (Argon), He(Helium). So their atomicity is one.
- On the other hand the molecules of many elements are composed of two atoms of that element. For instance, oxygen can never exist independently and exist as O2 molecule known as diatomic So its atomicity is 2.
- The molecules of many elements are composed of three atoms of that element. They are termed as triatomic For instance, O3, CO2. So their atomicity is 3.
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Yogita Ingle 5 years, 8 months ago
Ultrasonography is a relatively safe diagnostic medical procedure where sound waves are introduced into the body using a transducer. The sound waves bounce off the bones and tissues in the body and produce a black and white image on a monitor. The procedure is safe because it does not use ionizing radiation like an x-ray or CAT scan, which should be avoided in pregnancy.
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