Which of the following hormones stimulates uterine contractions during the birth process in mammals?

A. oxytocin
B. chorionic gonadotropin
C. FHS
D. LH
E. testosterone


Answer: A

Biology & Microbiology

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At one of Paine’s study sites, the dominant organisms in the tidal pools were mussels,

barnacles, whelks, and a species of starfish know as Pisaster ochraceus. These organisms together are a(n) __________.

a. population b. community c. ecosystem d. niche

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Most freshwater algae belong to which group?

a. red algae b. green algae c. brown algae d. golden algae e. blue-green algae

Biology & Microbiology

You wish to study how a protein binds to DNA, and which specific amino acids are involved.  To do this you would create which type of model?

A. mathematical model B. structural model C. temporal model D. mechanistic model E. hierarchical model

Biology & Microbiology

Which hypothesis proposes an explanation for the origin of eukaryotic organelles?

a. the endosymbiotic hypothesis b. the hydrogen hypothesis c. the origins hypothesis d. the eukaryotic hypothesis

Biology & Microbiology