Which of the following is the most common parasitic disease in industrialized nations?
A. giardiasis
B. Trichomonas infection
C. schistosomiasis
D. toxoplasmosis
E. balantidiasis
Answer: B
You might also like to view...
Support the argument that species in the grass family, Poaceae, are the most important seed plants today
What will be an ideal response?
Which of the following represents one of the theories for the sudden change in diversity called the Cambrian Explosion?
a. sudden extreme cooling of the Earth’s climate b. asteroid impact c. rising atmospheric oxygen levels d. migration introduction of new diseases
A pure-breeding female fruit fly with a yellow body is crossed to a pure-breeding male fruit fly with a gray body. All female offspring from the cross have gray bodies and all males have yellow bodies
Body color is likely a(n)__________trait, and the gray allele is ________. A) Autosomal; dominant B) Autosomal; recessive C) X-linked; dominant D) X-linked; recessive
What axonal characteristic facilitates the propagation of an action potential along a myelinated axon?
a. Voltage-gated Na+ and K+ channels are concentrated in the myelinated axonal segments. b. Voltage-gated Na+ and K+ channels are concentrated in the unmyelinated axonal segments. c. Voltage-gated Na+ channels are concentrated in the myelinated axonal segments; voltage-gated K+ channels are concentrated in the unmyelinated axonal segments. d. Voltage-gated K+ channels are concentrated in the myelinated axonal segments; voltage-gated Na+channels are concentrated in the unmyelinated axonal segments. e. Voltage-gated Na+ K+ channels are spread evenly throughout both myelinated and unmyelinated segments