Siberian tigers and grizzly bears became endangered for __________ reason(s);
____________________.
a. different; tigers encountered disease and bears were overhunted
b. different; bears encountered disease and tigers were overhunted
c. the same; both encountered disease
d. the same; both were overhunted
D
You might also like to view...
Which of the following models for RNA polymerase II transcription termination is analogous to ?-dependent termination in bacteria?
A. the antiterminator model B. the submarine model C. the torpedo model D. the allosteric model E. the hairpin model
Which of the following intestinal protozoa has no cyst stage, ranges from 9 to 12 µm in diameter, and has two nuclei in 60% of clinical specimens?
a. Giardia duodenalis b. Chilomastix mesnili c. Dientamoeba fragilis d. Enteromonas hominis
All sensory input arrives at the central nervous system in the same form, as ____________ propagated by afferent neurons. Perception of the type and intensity of a stimulus depends on which part of the brain the impulse projects to and the firing frequency of the sensory neuron.
A. action potentials B. receptor potentials C. reflexes D. frequency localizations E. thresholds
What is the function of the kinins released when mast cells degranulate?
A) activation of the complement system B) increased vascular permeability C) smooth muscle contraction D) increased production of tears and saliva E) chemotactic factors