An organism was isolated after growing 26 days. Colonial morphologic appearance revealed heaped, wrinkled, moist, and yeastlike colonies. As the culture aged, colonies became covered with short aerial mycelium that turned from tan to brown. This organism is most likely:
a. Blastomyces dermatitidis.
b. Coccidioides immitis.
c. Histoplasma capsulatum.
d. P. brasiliensis.
D
Colonies of P. brasiliensis grow very slowly (21 to 28 days) and are heaped, wrinkled, moist, and yeastlike in appearance. With age, colonies may become covered with a short aerial mycelium and turn from tan to brown. The surface of colonies is often heaped with crater formations.
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During _____ bone segments rotate closer, whereas during ______ bone segments move further apart
A. flexion; extension B. extension; flexion C. rotation; flexion D. contraction; flexion E. contraction; extension
The capsule
A. may be used for protection. B. may be used to help the bacteria adhere to surfaces. C. may be involved in movement. D. may be involved in energy production. E. may be used for protection AND may be used to help the bacteria adhere to surfaces.
Humans are chordates. Which animal group is most closely related to chordates?
A) molluscs B) echinoderms C) annelids D) arthropods
The job of the placenta is primarily associated with
A. nourishment and waste removal. B. separation of the layers of embryonic tissue. C. protection of the fetus from infection. D. development of the outermost tissue of the embryo.