Which of the following is responsible for stimulating the release of pancreatic juice into the small intestine?
A) Gastrin
B) Cholecystokinin
C) Pepsin
D) Ghrelin
E) Leptin
B
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Medicines containing hormones affect developing in the fetus
a) lungs b) brain structures c) limbs d) muscles
What step in DNA replication precedes the pairing of complementary bases?
a. polymerization of DNA b. separation of the two strands c. joining of the two strands d. mitotic division e. formation of the histone core
The diagnosis of which one of the following diseases is based on the presence of clue cells?
a) Candidiasis b) Bacterial vaginosis c) Syphilis d) Genital warts
When the London underground (subway) system was built in the nineteenth century, mosquitoes moved into the tunnels and became adapted to biting the customers and small animals that inhabit the subway system. Like people, mosquitoes can freely enter and
leave through the tunnel entrances. Recently, DNA analysis and attempts to cross-breed above-ground mosquitoes with underground mosquitoes indicate that there are now two different species. The underground insects are visibly larger. Which term best describes what has happened? A) behavioral incompatibility B) population bottleneck C) temporal isolation D) sympatric speciation