Contact dermatitis involves
A) Itchy papules and blisters.
B) A sensitizing and provocative dose.
C) T-lymphocytes secrete inflammatory cytokines.
D) Allergen entering the skin.
E) All of these choices are correct
E) All of these choices are correct
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Which of the following arthropods is the vector of Lyme disease?
A) flea B) mite C) mosquito D) tick
A dikaryotic cell
a. is a spore. b. results from nuclear fusion. c. contains nuclei of two different mating types. d. becomes a zygote. e. becomes a gamete
Although most hormones work at sites distant from where they are secreted, some work locally, such
as a. follicle stimulating hormone. b. prostaglandin. c. luteinizing hormone. d. thyroid stimulating hormone. e. adrenocorticotropic hormone
In the human birth process, what does labor refer to?
A) the last part of the process when the fetus is expelled from the vagina B) regular contractions of uterine muscles C) the period between birth and expulsion of the placenta D) the period between the first contraction and dilation of the cervix