________ is characterized by tender, swollen gums with a bright red or purplish coloration; the gums may also pull away from teeth, and bad breath and tooth loss are also frequent manifestations
A) Gingivitis
B) Dental caries
C) Oral yeast infection
D) Thrush
E) Periodontal disease
Answer: E
Biology & Microbiology
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Some freshwater and marine fishes that are osmoregulators are estimated to expend _____ of their resting metabolic energy on osmoregulation
A. 10% B. 20% C. 30% D. 50% E. 60%
Biology & Microbiology
Fungi are decomposers, converting carbon from CO2 into organic macromolecules.
Answer the following statement true (T) or false (F)
Biology & Microbiology
A group of proteins with actions including antiviral activity are the:a
tumor necrosis factors. b. chemokines. c. complement systems. d. interleukins. e. interferons
Biology & Microbiology
In humans, transmission of nerve impulses across a synaptic cleft is carried out by ________.
a. neurotransmitter molecules b. potassium ions c. the nodes of Ranvier d. sodium ions
Biology & Microbiology