If plants originated from an organism like Chlamydomonas, then the origin of plants involved the loss of
A. microtubules.
B. cell walls.
C. chloroplasts.
D. flagella.
Answer: D
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Mammalia, the taxon that includes all mammals, is ____ because all mammals are the descendants of a common
ancestor.
a. biphyletic b. monophyletic c. polyphyletic d. homoplastic e. paraphyletic
After a human being draws in outside air through the nasal cavity, in what order does the air flow before reaching the alveoli?
a. Larynx, trachea, bronchi, bronchioles b. Trachea, larynx, bronchi, bronchioles c. Larynx, trachea, bronchioles, bronchi d. Trachea, larynx, bronchioles, bronchi
Which of the following is incorrectabout the human skeleton?
A) It can release phosphorous. B) It can store fat. C) It can produce blood cells. D) It is composed only of a solid nonliving matrix.
Development of emerging infectious disease can be a result of all of the following EXCEPT
A) microbial mutation. B) modern transportation. C) use of genetically modified foods. D) changes in the environment. E) overuse of antibiotics.