Saturday, February 9, 2013

Ask A Scientist Response

A few weeks ago, I visited Ask A Scientist Website- Howard Hughes Medical Institute.  http://www.hhmi.org/askascientist/

The question I asked was: how can bdelloid rotifers still be considered living if they can shut down their metabolism for a period of time during harsh conditions?  

The background on the question was further examining the characteristics of life.  I began to think about bdelloid rotifers and their ability to shut down during harsh conditions.  I was curious if they were still considered living at the point of slowed or shut down of metabolic systems. 

The response I received was simple and easy to understand.  A volunteer scientist wrote to me that typical characteristics that we view in living organisms do not need to be evident at all times or during all life stages.  For example, all organisms must have the capability to reproduce.  However, during certain stages in life, women go through menopause and can no longer reproduce.  They are obviously still living.  I found this to be an interesting comparison and helped to put the answer to my question into perspective.  

I believe my students would enjoy using this website and receiving an answer from a scientist.  It helps to make science seem real and not just something to study in class.  I am going to incorporate this site into my science lessons! 

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