Marine bony fishes have blood that is just as salty as seawater
Indicate whether the statement is true or false
F
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Which hormone increases the absorption of glucose by the body's cells?
A. insulin B. glucagon C. adrenocorticotropin D. leptin E. adrenaline
The decline in the occurrence of sickle-cell anemia in the American population is most likely the result
of
a. a lower mutation rate in the United States than in Africa. b. the advantage of both homozygous forms over the heterozygous form. c. the development of appropriate medical treatment for the sickle-cell condition in the United States. d. a decline in the occurrence of malaria in the United States. e. the absence of mosquitoes.
When an earthworm is underground, which type of receptors will relay information on directional
movement? a. lateral line organs b. otoliths c. cristae d. stereocilia e. statocysts
Bacterial sexually transmitted diseases include all of the following except
A. gonorrhea. B. herpes. C. chlamydia. D. syphilis.