Which of the following is an adaptation that enables cephalopods to escape from their predators?
A. torsion
B. poisonous salivary secretions
C. a hard shell
D. rapidly changing colors
E. a modified radula
D
You might also like to view...
An individual has been infected with a particular retrovirus. In order for the latent virus DNA to be inherited by subsequent generations stemming from this individual, it must be found
A) in germ line cells. B) in stem cells. C) at a point early in childhood. D) in all cells simultaneously. E) in somatic cells.
Cryptococcus neoformans is widely distributed in nature, and aerosolization is a prerequisite to most infections. This organism is most often associated with exposure to:
a. contaminated soil. b. pigeon excreta. c. contaminated food. d. rat excreta.
Robert Koch was involved in research on all of the following topics EXCEPT
A) the cause of anthrax. B) the cause of fermentation. C) development of a method to determine the cause of an infectious disease. D) the cause of tuberculosis. E) techniques for isolating microbes in the laboratory.
Which hepatitis virus only results in acute infections?
A) hepatitis A B) hepatitis B C) hepatitis C D) hepatitis D E) hepatitis E