Marine teleost fishes deal with the osmotic stress of living in seawater mainly by ____
a. active transport of ions into the body through the gills
b. excreting nitrogenous wastes through their kidneys as urea
c. active transport of ions out of the body by chloride cells
d. excreting excess salt through the actions of specialized salt glands in their heads
e. maintaining high levels of urea and trimethylamine oxide in body fluids
ANSWER: c
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The extraembryonic membrane that contributes to the formation of the placenta. _____
A) Human chorionic gonadotropin
B) Zygote
C) Chorion
D) Morula
E) Folic acid
F) Fertilization
G) Blastocyst
H) Parturition
I) Cleavage
J) Ovulation
K) Placenta
L) Implantation
The demographic transition:
a. includes a decrease in the death rate followed by a decrease in the birth rate as a population becomes industrialized. b. includes a decrease in the birth rate followed by a decrease in the death rate as a population becomes industrialized.
A sample from a patient is prepared using the Gomori methenamine silver stain. What type of microbe is suspected of being present?
A) bacteria B) parasitic worm larva C) fungus D) protozoal parasite E) virus
What type of tissue would be found surrounding the outside of a mouse intestine?
a. Simple squamous epithelium b. Simple cuboidal epithelium c. Smooth muscle d. Simple columnar epithelium e. striated muscle tissue