Which of the following hormones stimulates uterine contractions during the birth process in mammals?
A. oxytocin
B. testosterone
C. FHS
D. chorionic gonadotropin
E. LH
A. oxytocin
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The cyanobacterium Trichodesmium ________.
A. fixes a significant amount of N2 in oceanic environments B. uses nitrite as a source of nitrogen C. is a spherical organism D. fixes N2 during the day
Plaque is caused by many organisms but one of the
main causes is a. fungal chitin. b. protistan lipids. c. algal alginates. d. extracellular products of bacteria e. all of these.
The __________ prevents food and fluids from
entering the __________. a. epiglottis; larynx b. pharynx; larynx c. epiglottis; esophagus d. pharynx; trachea e. larynx; pharynx
Describe the hypothesis that James Neel proposed to describe the inheritance pattern of SCD. What experimental methods did he use to prove his hypothesis?
What will be an ideal response?