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Science teacher for over 50 years. MSc. in biology. I can answer questions in general biology, zoology, botany, anatomy and physiology and biochemistry.

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I have a MSc in biology and have been a science teacher for over 50 years. At present I am a faculty member at a college and a science consultant at seven catholic schools.


The Ohio journal of Science
Momentum-The Journal of the Catholic Education Association

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
Aishwarya09/02/16101010Thank you sir Your response was clear .....
Prashant S Akerkar 08/25/16101010Dear Prof Walter Thanks. Prashant
Prashant S Akerkar 08/17/16101010Dear Prof Walter Thanks. Prashant

Recent Answers from Walter Hintz

2016-10-03 HHelp:

All cells do respire but forget for the moment all body parts but the Lungs. Some time age I mentioned the hierarchy to you as follows;    Cells make up Tissues    Tissues make up organs  Organs make uo

2016-10-02 HHelp:

Hi Aishwarya    The lungs are an organ and its function is respiration. It is true that the gas exchange is carried out in the alveoli and these cells make up the lung tissues

2016-09-16 Help:

I am not sure what you mean by cells "performing nutrition"/ You are getting tied up in semantics here as you did in your second paragraph. Cells are not called nutritive organs Let me start with some

2016-09-10 Help:

The cell theory states that all living things are made of cells.  The implication here is that living things contain "live" cells . Of course when living things die they are now made of dead cells.   

2016-09-04 Help:

There is a difference between an onion (which is not a fruit ) and  fruit that contains seeds. The cells in the onion nourish the developing sprout just as the potato cells nourish the sprouting buds.


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