When plaque becomes mineralized with calcium and phosphate crystals, it becomes a hard, porous substance called ________.
Fill in the blank(s) with the appropriate word(s).
calculus
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Keratins are considered to be obligate heterodimers in that the dimers forming their filaments must contain one __________ and one __________ subunit?
Fill in the blank(s) with the appropriate word(s).
The disease characterized by a high blood glucose due to a deficiency of insulin production or failure of cells to respond to insulin is ____________ mellitus.
Fill in the blank(s) with the appropriate word.
The first animal group to show extracellular digestion was the
A. cnidarians. B. sponges. C. roundworms. D. flatworms.
Which phrase most accurately describes the genome of most viruses?
A) surprisingly complex, with around 1 million genes B) the same as most bacteria, with hundreds of genes C) relatively simple, with around a dozen genes or fewer D) surprisingly complex, with tens of thousands of genes