Where is the sinoatrial node located?

a. left atrium
b. left ventricle
c. pulmonary artery
d. right atrium
e. right ventricle


D

Biology & Microbiology

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An enzyme that attaches a phosphate group to another molecule is called a _______________

A. phosphatase B. phosphorylase C. kinase D. cyclase

Biology & Microbiology

Which one of the following marine ecosystems would be expected to have the lowest species diversity and primary production per unit area?

A. Oligotrophic oceans B. Intertidal zone C. Upwelling regions of ocean D. Coral reefs E. Estuaries

Biology & Microbiology

The function of BMP4 is to ________ while the function of gremlin is to ________ BMP4.

A. cause apoptosis; act as a catalyst for B. cause apoptosis; inhibit the function of C. induce mitosis; amplify expression of D. inhibit growth; amplify expression of E. induce mitosis; inhibit the function of

Biology & Microbiology

Choose the receptor that is not correctly matched with its function.

A. Nociceptor: transmits signals that the brain interprets as pain B. Baroreceptor: monitors hydrostatic pressure in blood vessels C. Proprioceptor: monitors stretch of muscle fibers D. Peripheral chemoreceptor: monitors the pH of the cerebrospinal fluid E. Chemoreceptor: perceives taste and smell stimuli

Biology & Microbiology