Which digestive structure stores concentrated bile?
a. the gallbladder
b. the stomach
c. the pancreas
d. the duodenum
Answer: a. the gallbladder
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Which of the following pairs of general transcription factors are released after transcription is initiated?
A. TFIIE and TFIIH B. TFIIF and TFIIH C. TFIID and TFIIE D. TFIID and TFIIH E. TFIIE and TFIIF
Which of the following would be the least
satisfactory organism for genetic research? a. humans b. bacteria c. corn d. fruit flies e. peas
Antidiuretic hormone and oxytocin are products of
a. exocrine glands. b. secretory neurons c. blood capillaries. d. the anterior pituitary. e. kidney and uterine wall cells, respectively.
The competitive exclusion principle states ________.
a) two species cannot occupy the same niche in a habitat b) certain species can have disproportionately large effects relative to their abundance c) certain small areas hold unusually large number of species d) nonnative species introduced into a new ecosystem can cause native species to go extinct