Which of the following maintains the corpus luteum and stimulates it to continue to produce the hormone progesterone?

A) human chorionic gonadotropin
B) progesterone
C) estrogen
D) testosterone


A

Biology & Microbiology

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There is an influx of which ion into the synaptic knob triggering the vesicles containing neurotransmitter to move towards the presynaptic membrane

A) calcitonin. B) calcitriol. C) calmodulin. D) calcium E) calcitropin.

Biology & Microbiology

Water flowing back and forth across the gills of fish is known as _____

a. capillary movement b. counter current exchange c. deoxygenation d. pharyngeal movement e. gill slits

Biology & Microbiology

The ____ hypothesis states that mitochondria and chloroplasts evolved from bacteria.

A. invagination B. exosymbiont C. membrane folding D. captured bacteria E. endosymbiont

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Which of the following is associated with groundwater mining?

A. standing water (lakes and ponds) B. ice C. aquifers D. runoff E. ocean

Biology & Microbiology