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Meghna Thapar 5 years, 1 month ago
Density, mass of a unit volume of a material substance. Density is the mass per unit volume of any object. It is calculated by dividing the mass of an object by its volume. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in MKS or SI units).
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Chaitanya Saini 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
To convert it into Celsius from Kelvin then 273 is to be subtracted from the given kelvin scale
300k = 300 - 273 = 27°C
Posted by Reetika Gusain 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
- Columnar Epithelium – The columnar epithelium has cells that are pillar-like and column-like. We can find them in the lining of the stomach and intestine. Its functions include absorption and secretion.
Posted by Neha Jangid ??? 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
Hormones are chemicals synthesized and produced by the specialized glands to control and regulate the activity of certain cells and organs. These specialized glands are known as endocrine glands.
Hormones are chemicals that essentially function as messengers of the body. These chemicals are secreted by special glands known as the endocrine glands. These endocrine glands are distributed throughout the body. These messengers control many physiological functions as well as psychological health. They are also quite important in maintaining homeostasis in the body.
Posted by Neha Jangid ??? 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
Hormones are chemicals synthesized and produced by the specialized glands to control and regulate the activity of certain cells and organs. These specialized glands are known as endocrine glands.
Hormones are chemicals that essentially function as messengers of the body. These chemicals are secreted by special glands known as the endocrine glands. These endocrine glands are distributed throughout the body. These messengers control many physiological functions as well as psychological health. They are also quite important in maintaining homeostasis in the body.
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Ganesh Parihar 5 years, 1 month ago
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Suchitra Sen 5 years, 1 month ago
Heeba Anshra Anshra 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
The cell theory which states that all the plants and animals are composed of cells and that the cell is the basic unit of life was presented by two biologists, Schleiden (1838) and Schwann (1839).
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Yogita Ingle 5 years, 1 month ago
The human egg (ovum) is the largest cell in the body and a nerve cell is the longest cell in the human body.
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Yogita Ingle 5 years, 1 month ago
The chemical that is deposited in the secondary wall of sclerenchyma is lignin
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Yogita Ingle 5 years, 1 month ago
A kaleidoscope is an optical instrument consisting of two or more reflecting surfaces. These surfaces are tilted towards each other at a certain angle to obtain symmetrical patterns when viewed from the other end. The tube with reflecting surfaces consists of coloured pieces of glass. By rotating the tube, symmetrical images are created.
The word kaleidoscope is derived from the Ancient Greek word called “kalos” meaning “beautiful beauty”, “eidos” meaning “that which is seen” and “skopeo” meaning “to look”. David Brewster, a Scottish inventor, invented kaleidoscope on July 10, 1817.
In a kaleidoscope, the sunlight is bounced by the glass, and coloured beads present inside and are reflected in the mirrors to create magnificent picturesque patterns. These patterns offer an excellent visual treat to the person who looks through the kaleidoscope. It’s fun to watch and observe the mixing and matching pattern created insides the kaleidoscopes.
Ritik Kewat 5 years, 1 month ago
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Pihu Bundela 5 years, 1 month ago
1Thank You