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What substance (s) builds up in the tissues in conditions , like during intense exercise, when the availability of oxygen is reduced :

Which layer(s) of the wall of the GI tract contain a nerve plexus?

The sum of chemical reactions that bind simple monomers molecules to form polymers is known  as:

In the following figure of an intestinal villus, identify the structures labelled 1 and 2. (2pts) . Describe the main function of the cell labelled 5 (2 pts)   

Name two secretions released inside the gastric cavity and their function.

            The main action of secretin  is:                                     

What law of the gases is represented in this Figure ? . 1 pt. How this Law applies to the movement of gases in the respiratory system ? 2 pt.     

What is the relationship between anabolic and catabolic pathways?

  Which of the following cells secretes an inactive enzyme (zymogen) ?: _________________. What is the name of the zymogen ?_:___________________.How the zymogen becomes active ?______________________   

INSTRUCTIONS: Rewrite the incorrect sentences. If a sentence is correct, write OK. Ex: This is the shirt whom I bought on eBay.   This is the shirt that I bought on eBay.   This is the shirt which I bought on eBay.   This is the shirt I bought on eBay. I don’t believe everything that I read on eBay.