If a flagellum is analogous to the cell, which of the following is analogous to the animal body?
a. a muscle system
b. a nervous system
c. a reproductive system
d. a digestive system
Ans: a. a muscle system
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Speciation may be promoted within a complex tropic ecosystem due to increasing what?
a. habitat heterogeneity b. habitat homogeneity c. competition d. predation
The organ of Corti rests on the
a. round window. b. oval window. c. Eustachian tube. d. auditory nerve. e. basilar membrane.
What feature of tumor-causing Rous Sarcoma Virus (RSV) distinguishes it from ancestral Avian Leukosis Virus (ALV)?
a) RSV genome has lost the viral replication genes that ALV has b) RSV has an oncogene that ALV does not c) RSV infection is limited to mammals whereas ALV infects birds d) RSV causes cancer whereas ALV only induces benign tumors
The _____ stain is used to stain and differentiate Mycobacterium and Nocardia from other bacteria.
A. acid fast B. methylene blue C. Gram D. negative E. basicv