BIO 5406
McGilliard
 
 

Reading Assignment:
 
     Hadley, pp. 310-312.

     Randall, D., Burggren, W., and French, K.  Eckert Animal Physiology:  Mechanisms and

          Adaptations, 5th ed.  W.H. Freeman, New York, 2002, pp. 349-352.
 
 
Objectives:

     After reviewing your lecture notes and reading assignment, you should be able to:
 
     1.  Describe the morphological changes which take place during anuran (frog)
          metamorphosis and explain their overall physiological and ecological significance.
 
          Lab -- 2/26
          Text -- pp. 310-311

          Stages of anuran metamorphosis

     2.  Describe the effects of the following experimental treatments on the rate of
          metamorphosis:
          a. Thyroxine.
          b. Thyrotropin.
          c. Antithyroid drugs.
          d. Prolactin.
          e. Thyroidectomy.
          f.  Hypophysectomy.
 
          Lab -- 2/26
          Text -- pp. 310-312
 
     3.  Outline a reasonable hypothesis to explain the endocrine control of anuran
          metamorphosis.
 
          Lab -- 2/26
          Text -- pp. 311-312

          Regulation of anuran metamorphosis

     4.  Identify the stages of hemimetabolous and holometabolous insect development.
 
          Lab -- 2/26

          Insect metamorphosis
          Randall

     5.  Describe experiments which identify the roles of the brain, prothoracic gland,

          and corpora allata in insect development.
 
          Lab -- 2/26
          Randall

     6.  Describe the roles of ecdysone and juvenile hormone in insect development.
 
          Lab -- 2/26
          Randall