Skin, lung, and blood vessel walls have which tissue characteristic in common?
A) simple columnar epithelium
B) reticular fibers
C) elastic fibers
D) simple squamous epithelium
C
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Which of the following is considered to be a myofibril regulatory protein?
A. G actin B. Titin C. Troponin D. Myosin E. Calcium
What is believed to be the major evolutionary pressure in the development of closed circulatory systems?
A) Transport of oxygen B) Transport of immune factors C) Transport of hormones D) Transport of glucose
Explain the decreased fertility commonly found in males with anabolic steroids use.
A. Exogenous testosterone will trigger a decrease in GnRH. B. Positive feedback will occur as a result of exogenous testosterone, leading to reduced sperm production. C. LH and FSH levels will increase in response to the exogenous testosterone. D. The adrenal cortex will increase production of endogenous testosterone, therefore decreasing sperm production.
One of the major functions of the pons is to regulate hormonal output of the anterior pituitary gland
Indicate whether the statement is true or false