Please match the diseases with their most common portal of exit.

Tuberculosis, Influenza

A) Respiratory tract (aerosols)
B) GI tract (saliva droplets)
C) Exudates from skin lesions
D) GI tract (diarrhea)
E) Reproductive tract (semen)
F) Blood through a contaminated needle


A) Respiratory tract (aerosols)

Biology & Microbiology

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Seawater and fresh water do not mix very well in fjords

Indicate whether the statement is true or false

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Testosterone controls the rate of sperm production

Indicate whether the statement is true or false

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Refer to the accompanying figure. The amnion is identified by number:


a. 1.
b. 2.
c. 3.
d. 4.
e. 5.

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Unlike eutherians, both monotremes and marsupials _____

A) lack nipples B) have some embryonic development outside the uterus C) lay eggs D) are found in Australia and Africa

Biology & Microbiology