Which of the following contributes to infection with Trichomonas vaginalis?
A) contact with contaminated fomites
B) compromised immunity
C) careless handwashing habits
D) preexisting disease (chlamydia, for example)
E) living in an undeveloped area of the world
D
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The Law of Thermodynamics that states that energy cannot be created or destroyed is:
A. The First Law of Thermodynamics B. The Second Law of Thermodynamics C. The Third Law of Thermodynamics D. The Fourth Law of Thermodynamics
What features are associated with the leaf epidermis? Check all that apply.
_____ Guard cells. _____ Trichomes. _____ Cuticular wax. _____ Pores. _____ Tracheids.
Which types of eukaryotic cells have cell walls composed of cellulose?
A. Fungi B. Protozoa C. Plants D. Algae E. Both algae and plants
Species richness refers specifically to
a. the numbers of individuals of each species present. b. the ability of larger animals to enrich themselves by successfully preying on smaller ones. c. the number of different species in the habitat. d. the feeding levels at which the animals are located. e. none of these.