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Acellular and Cellular Organisms
you should be able to characterise living and non- living matter. However, the boundary-line between the two is not very precise. As you have read there are forms such as viruses which do not obey many of the above criteria.
Their structure is also quite different from that of the other living organisms. Thus we say that most organisms are made up of cells, or they have cellular organization. On the other hand, viruses are non-cellular or acellular. This brings us to the concept of cell, and cell theory.
mitotic division
Types of cells in Phloem The phloem consists of 4 types of cells: i).sieve elements, ii) companion cells, iii) phloem parenchyma and sometimes iv) phloem fibres. The metabolit
Which two gases are exchanged when living organisms breathe? Oxygen and carbon dioxide are the gases exchanged when living organisms breathe.
Define requirements of Calcium during pregnancy period? The foetus retains about 25-30 g of calcium, over the course of gestation, most of which is deposited in the last trimes
Q. How different are the actions of antibodies against virus and against bacteria? Why is the cellular immune response activated in case of chronic viral infection? The antibod
The mathematical, statistical and computing methods that aim to resolve biological queries using DNA and amino acid sequences and related information is called as Bioinformatics.
The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.
The several types of steam sterilizers that are in use. 1. Lab Autoclave 2. Hospital dressing sterilizer 3. Bowl & instrument sterilizer 4. Rapid cooling sterilizer
Define sexual reproduction
INTERNA L EAR - It is called membranous labyrinth protected by bonny labyrinth of periotic bone (Frontal, Temporal and Parietal). Between internal ear and bonny la
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