The blood calcium level is regulated by two hormones: ________ causes an increase in blood calcium, whereas ________ causes a decrease in blood calcium
Fill in the blank(s) with correct word
parathyroid hormone (PTH); calcitonin
Biology & Microbiology
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Decalcification of the tooth enamel due to the production of high concentrations of organic acids in the mouth is known as
A) degenerative plaque. B) dental caries. C) dental plaque. D) microbial enamel decalcification.
Biology & Microbiology
What is the sequence of the temperatures of a typical PCR reaction?
a. 94 °C, 72 °C, 60 °C b. 94 °C, 60 °C, 72 °C c. 72 °C, 60 °C, 94 °C d. 72 °C, 94 °C, 60 °C e. 60 °C, 72 °C, 94 °C
Biology & Microbiology
The sperm head encloses a compact nucleus and is capped by a vesicle called what?
A. vas deferens B. acrosome C. epididymis D. Sertoli cell E. flagellum
Biology & Microbiology
What relationship is true of an uncharged atom?
What will be an ideal response?
Biology & Microbiology