Answer the following statements true (T) or false (F)
1. All human warts are caused by viruses in the genus Papillomavirus.
2. Chickenpox and shingles are caused by the same virus.
3. Koplik spots are a sign of smallpox.
4. Mumps is a rather mild disease, without any serious complications.
5. West Nile virus is most commonly transmitted by tick bite.
1. TRUE
2. TRUE
3. FALSE
4. FALSE
5. FALSE
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Answer the following statements true (T) or false (F)
1. Damage to the seminal vesicles would prevent sperm from becoming motile. 2. Erectile dysfunction can be treated by drugs that increase levels of nitric oxide. 3. FSH stimulates the activity of Leydig cells and LH stimulates the activity of Sertoli cells. 4. A human female has the largest number of primary oocytes at the onset of puberty. 5. FSH secreted by the pituitary stimulates fluid secretion into the antrum of the follicle.
Which is another name for bone cells that remain alive even after the extracellular matrix becomes hardened with calcium phosphate crystals?
A. osteocytes B. erythrocytes C. leukocytes D. fibrocytes E. chrondrocytes
The process of ____ is the flow of heat between atoms or molecules in direct contact
a. conduction b. radiation c. evaporation d. convection e. radiative cooling
In the Pliocene, most marsupials in South America went extinct as a result of ________
a. continental movement allowing the influx of placental mammals b. the formation of Pangea c. competition from monotremes d. an asteroid impact