Label 1 indicates the
a. matrix of the seminiferous tubule.
b. lumen of the seminiferous tubule.
c. epididymis.
d. vas deferens.
e. penis.
B
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There is a controversy over pre-teen girls receiving the HPV vaccine. Many parents think that giving this vaccine condones sexual activity at a young age. On the other hand, there are parents who do not want their kids to pick up STIs. Why is the vaccine recommended for 11-12 year old girls? Why not give the vaccine to young adult women who are just becoming sexually active?
A. Very young women tend to get cancer from HPV, whereas women who are older get warts from HPV. B. The immune system is strongest in pre-teen girls, so it is best to give the vaccine very early in life. C. Once the young woman becomes infected with HPV, the virus gets into cells. It is then too late to vaccinate. D. The vaccine is cheaper for young girls since the dosage of virus in the vaccine is far less than that given for older women.
When phospholipids are mixed with water their interact with water and their are repelled, forming a lipid bilayer.
A. hydrophilic tails; hydrophobic heads
B. hydrophilic heads; hydrophobic tails
C. hydrophobic heads; hydrophilic tails
D. hydrophobic tails; hydrophilic heads
E. hydrophilic heads; hydrophilic tails
Which of the following is an application of the
first law of thermodynamics? a. The level of entropy increases as time passes. b. Living organisms represent an exception to the laws of energy. c. The quantity of energy does not increase or decrease in the universe. d. Fungi and plants do not make their own energy but derive it from somewhere else. e. The amount of energy found in the compounds on one side of an equation is equal to that on the other side
All of ventricular cells depolarizing and then repolarizing are shown as the ___________ on an EKG.
A. P wave B. P-Q (or P-R) interval C. QRS complex D. Q-T interval E. T wave