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Define age related changes in Cardiovascular system
There is a decrease in elasticity of the aorta and other large arteries as age increases. Thickness of blood vessels increases leading to a rise in blood pressure. The myocardium (muscle wall of the heart) shows atrophy. There are structural changes in the valves. Number of pacemaker cells gets reduced, thereby a reduction in heart rate is observed.
classes of aves
Folic acid has the following important physico-chemical properties: a) It is a yellow, spear-shaped crystalline substance. b) The compound is sparingly soluble in water.
Nematodes These are next to protozoa and are the abundant soil microfauna in soil. They are also called eelworms, thread worms or roundworms. Nematodes that feed on decayin
Give Some examples of minerals used in everyday life? There are many minerals that are used in everyday life. We will discuss a few common examples of minerals and how they ar
The Maximum theoretical limit of channel is governed by Nyquist theorem, which says Bth = 2 x freq in hertz x log2L ( where L = number of level) Thus we have in this case Bth= 2x60
Explain the Heat loss and Bacteriolytic action Heat loss - This is found in dog, sheep etc. Who do not have sweat glands? In very hot climate, they secrete more saliva (pant
Explain Organs of the Respiratory System The respiratory system consists of various organs. They form a clear pathway for the air to enter and leave the lungs. The body needs a
Explain the following horizons: i) Oap ii) Btk i) Organic horizon (O) with organic material that has undergone decomposition (a) and has been disturbed or
What are all the planets in our solar system?
Some potato cores were weighed and then placed into a dilute sugar solution. After 2 hours, they were taken out of the solution, dried on a paper towel and weighed again. The mass
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