At the end of meiosis II, one spermatogonium has formed
A) 2 fully functional sperm.
B) 4 fully functional sperm.
C) 2 spermatids.
D) 4 spermatids.
E) 1 sperm and 3 polar bodies.
D
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If the diastolic pressure and systolic pressure were both increased by 10 mm Hg, then the pulse pressure would also be increased by 10 mm Hg
Indicate whether the statement is true or false
The vastus lateralis, vastus medialis, and vastus intermedius muscles insert on the:
A) linea aspera of the femur. B) greater trochanter of the femur. C) superior margin of the acetabulum. D) patella and tibial tuberosity of the tibia.
How do goblet cells, present in the lining of the trachea, contribute to the protection of the respiratory system?
A) Goblet cells create a sweeping motion that propels mucus toward the throat. B) Goblet cells create a patent airway. C) Goblet cells protect the superior opening of the larynx by preventing the entry of food and fluids into the larynx. D) Goblet cells produce mucus that traps dust particles and other debris. E) Goblet cells vibrate to allow us to speak.
What is the sperm count of an infertile male?
A. Less than 20 million sperm/mL B. Less than 200 million sperm/mL C. Less than 100 million sperm/mL D. Less than 500 million sperm/mL