Define reflex action
What do you understand by the term reflex action? Illustrate briefly.
Expert
The Reflex action is a spontaneously involuntary response caused due to the stimulation of receptor organ. Example: The quick closure of eye lid whenever some object touches eye lashes the sudden withdraw of hand whenever the hand touches hot pan.
Briefly describe the functions of testosterone?
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Give a brief explanation of the term “chiasms” of homologous chromosomes?
Why do certain trees lose their green color in autumn season?
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