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Explain the Muscle layer
This layer consists of two layers of smooth muscle. The outer layer is a longitudinal muscle layer and the inner layer is a circular muscle layer. But there are some exceptions in some organs. Between these two muscle layers, there is a network of nerves called the myenteric plexus. It contains both sympathetic and parasympathetic nerves. The contraction of this smooth muscle layer is called peristalsis. You would realize that it is by peristalsis that the food contents of the gastrointestinal tract are pushed onwards.
Explain Ways How Immune System Protect Us 1) It creates a barrier that prevents bacteria and viruses from entering our body. 2) If a bacterium or virus does get into the b
Q.How are clouds formed? During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also r
Solar energy: The energy we get today from the fossil fuels like coal, is in reality sun's energy, trapped in them millions of years ago. Plants make their food and grow bec
Demonstrating an eclipse of the moon Use a flash light or a lighted candle in a darkened room to show the sun. Hold an 8 cm rubber ball in one hand to show the earth. Hold a 2-
INTRODUCTION : In the first unit of this block you read about hazards due to electricity and gases in the science laboratories. 'The second unit deals with yet another type of com
Explain the process of Freezing Freezing, as a method, is the easiest, most convenient and least time-consuming way of preserving foods. Freezing does not sterilize foods or d
What is the concentration of epinephrine in kidney?
In Fehling's Test The free sugar group (aldehyde or ketone) reduces the Cu (cupric) ions in an alkaline environment to form Cu 10 (cuprous oxide) and the sugar is itself ox
Explain the Somatosensory System The somatosensory system consists of: 12 pairs of cranial nerves, and 31 pairs of spinal nerves All our conscious awaren
REGULATIONS CONCERNING SAFETY AND HEALTH OF WORKERS IN INDUSTRIAL LABORATORIES The workers in industry engaged in using or producing chemicals, coal, high temperature, intense
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