Internal and external gills
Explain the challenges and advantages of having internal gills over external gills for gas exchange? (2 points)
Define the term DNA library and protein sequence database. Briefly define the terms.
Define the term bacteria? Briefly describe it.
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Write some common features of antigen-antibody interaction.
From intestinal lumen through to tissues - Explain the route of nutrients after they get digested?
Justify the exchange of cells between mother and fetus through the placenta?
Illustrate out the wall resistance of plant cells? Does this resistance assist or make tricky the access of water in the cell?
In accordance with the stimuli they accumulate, how the sensory receptors are classified?
Name cells with a delimited nucleus? Describe the major elements of the nucleus?
State the function of keratin in epidermis?
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