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In systematic four types of relationships are studied and they are:
a) Relationships of phylogeny (evolutionary descent) or the degree to which two organisms are thought to be related to a common ancestor.
b) Relationships of similarity in morphology (appearance and structure) physiology, cytology etc.
c) Spatial or geographical relationships
d) Trophic or nutritimal relationships, which study the extent to which two or more organisms depend upon each other or compete with each other for food.
Which of the following experimental steps permitted Hershey and Chase to verify that the transforming agent in a bacteriophage is DNA as well? A. Phage particles were mixed wit
Why are transgenics considered a threat to the environmental safety? Transgenics can be dangerous to the entire biosphere as the transfer of genes among species may have immed
Give an example of how the public perception of science has been distorted or manipulated to serve an alternative purpose.
Biological energy: Whenever matter is broken down its chemical energy is released as heat. Non biological system can utilize this heat energy directly in the performance of work,
the characteristics of flying fish belong to pisces
adaptation of kingdom animalia
are protozoans primitive to life .
Q. Biological species concept? A biological species as defined by Ernst Mayr are "groups of actually or potentially interbreeding natural populations which are reproductively
Define some major source of sodium and chloride? The major source of sodium and chloride is common salt added to our food in the form of sodium chloride. Naturally occurring so
Topical Route The medication in topical route is administered through ear, nose and eye. Drops are instilled into the nose, ear and eyes of the child in much the same way
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