Microscopic examination of a lung biopsy shows thick-walled cysts. What is the etiology of the symptoms?
A) Blastomyces
B) Coccidioides
C) Histoplasma
D) Mycobacterium
E) Pneumocystis
E
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All EXCEPT which of the following is true
about chlamydia? a. It is the most common bacterial STD. b. It can be passed on from mother to child. c. Most infected males are undiagnosed because they have no symptoms. d. It can be treated with antibiotics. e. Untreated males risk infertility
The coefficient of relatedness of a human child to its full sibling is, on average,
A. 0.25. B. 1.5. C. 1. D. 0.5. E. 0.75.
An island is on the migration route of sea birds. This island also has abundant tree nesting birds that live on the island permanently and are not found on any other island. The tree nesting birds are more likely than the sea birds to be in Hardy-Weinberg equilibrium because:
A. of high immigration in the sea bird population. B. natural selection is stronger in the tree nesting birds. C. mating is random in the tree nesting birds. D. the sea bird population is larger. E. there are fewer mutations in the sea birds.
Figure 23.12
?
The accompanying figure illustrates the life cycle of a(n) ____.
A. zygomycete B. ascomycete C. basidiomycete D. glomeromycete E. lichen