Which of the following areas of the respiratory tract is lined with a single layer of epithelial cells?
a. nasal cavity
b. larynx
c. trachea
d. bronchi
e. alveoli
E
Biology & Microbiology
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What is the effect of aflatoxins on humans?
a. cause hallucinations b. cure bacterial infections c. cure viral infections d. make stored foods toxic to the liver
Biology & Microbiology
Biologists refer to the fit of an organism to its environment as _______.
a. selection b. adaptation c. resistance d. regulation
Biology & Microbiology
Which enzyme is the product of the lacZ gene?
What will be an ideal response?
Biology & Microbiology
Male fireflies are recognized by females of their species by their flash pattern, while male crickets are recognized by females of their species by their chirping. These are examples of
A. habitat isolation. B. mechanical isolation. C. temporal isolation. D. behavioral isolation.
Biology & Microbiology