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Name structure “Q” of the ear. 

Name structure “G” of the brain. 

Which of the following is not a checkpoint for cell cycle control in a eukaryotic cell? 

Identify region G.   

Identify the part of the microscope labeled #9.   

The effect of temperature on the growth of bacteria was tested in an experiment.  Bacteria was placed in a petri dish using aseptic techniques, with controlled days, nutrient agar, as well as amount, type and source of bacteria. At the end of three trials per tempertature, the data was recorded as to how many bacterial colonies were present.   What was the experimental variable in this experiment?

Name structure “P” of the ear. 

Identify 6.  

Name structure “L”. 

Amino acids bonded together form a __________________.  The special type of bond between amino acids is called a _________ bond.