Elastic cartilage is found
a. in the nose.
b. at the ends of bones.
c. in the external ear.
d. between vertebrae.
e. embryonic skeleton.
C
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Based on the figure above, what snake antivenom would you administer to a person bitten by a king brown snake, if king brown snake antivenom were not available?
A) taipan B) common brown snake C) red-bellied black snake D) death adder E) tiger snake
In the experiments by Arnold, et al., why were some leaves on a cacao plant treated with endophytes and others were not?
A. to control the amount of Phytophthora that spread to other plants B. to provide a control for comparison of treated and untreated C. to reduce the amount of endophyte spores that were needed D. endophytes spread from one leaf to another E. to reduce the number of plants that were needed
Ecologist James H. Brown of the University of New Mexico has addressed species composition and
richness in experiments conducted since 1977 in the Chihuahuan desert of southeastern Arizona. In one experiment, the removal of three dominant species, all kangaroo rats, from several plots resulted in an increased diversity of other rodent species. This increase was ascribed both to lowered competition for food and also to an altered habitat, because the abundance of grass species __________ after the removal of the kangaroo rats. a. increased b. decreased c. did not change d. was threatened e. shrunk
Which of the following statements about the glycocalyx is false?
A) It may be composed of polysaccharide. B) It may be composed of polypeptide. C) It may be responsible for virulence. D) It is used to adhere to surfaces. E) It protects from osmotic lysis.