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Nekton - Aquatic Ecosystem
This group contains animals which are swimmers. The nektons are relatively large and powerful as they have to overcome the water currents. The animals range in size from the swimming insects, which may be only about 2 mm long, to the largest animals that have lived on earth namely the blue whale.
Importance of Forests - Fuel Wood The forests are renewable resources which provide us a wide variety of commodities. For man, forests have been a source of recreation and the
A. In order to determine the atomic number of an element we need to know the number of protons in an atom. As we know that atom is neutral we can also take the number of electro
why protozoass dont have vaccines esp. plasmodiums
Define the Microbiological Study of Water? Water is a common carrier of infectious diseases. Even clean and clear water which looks pure may be contaminated with pathogenic mic
Calculate the osmolarity of a solution of 5% dextrose in water (dextrose = glucose, molec. Wt. = 180).
Q. How Drying used for sterilization? Moisture is essential for bacteria, drying therefore has a deleterious effect on most bacteria. Spontaneous drying can often kill bacteria
Q. Why does not a long lasting vaccine against common cold exist yet? Viruses that present a high mutation rate like the virus that causes the common cold escape easily from th
Q. How does the sodium-potassium pump present in the cell membrane work? What is the significance of this protein for the cell? The sodium-potassium pump is the transport prote
What is the proper name for EDTA and what is it? EDTA is ethylenediamine tetraacetic acid. It is a tough chelating agent. It has many uses containing: 1) Industrial cleaning
If the generation time (t) is the incubation time (t) per generation (G), or t = t/G, rewrite the formula you derived in question 2 for bacterial population growth in terms of incu
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