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Q. What is membrane?
Membrane is any delicate sheet that separates one region from another blocking or permitting completely or selectively the passage of substances. The skin, for instance, can be considered a membrane that separates the external from the internal of the body; cellophane, used in chemical laboratories to separate solutions, acts as a membrane too.
Seed Dormancy - Plant Growth Substances Seed dormancy is critically important for the survival of plants. Factors involved in seed dormancy are: A. Environmental Factors
S h o c k It is defined as a generalized acute reduction in the perfusion of tissues by which there is oxygen deficiency in the cells. It is characterized by reduction in e
How plants solve the problem of transporting substances throughout their tissues? In the bryophytes the substance transport is done by the diffusion. In the tracheophytes (pter
Highlight ten applications of conductometry and explain four in detail
What are the main cells of which poriferans are made? Sponges have their outer wall covered by flat cells known as pinacocytes and having pores well-delimited by special cells
about apiculture
Q. Illustrate Spoilage of Milk and Milk Products? Milk is a wholesome food and so it is generally consumed in its basic form or with the addition of a beverage supplement. Mil
Is the upward move of warm air good or bad for the dispersion of pollutants? The upward movement of warm air is a natural method of dispersion of pollutants. The air near the g
Define Causes of Vitamin A Deficiency - Inadequate diet? A child is born with poor stores of vitamins and minerals due to maternal malnutrition. Diets of pregnant women are def
Define species according to the biological species concept. What two problems often make this definition impractical?
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