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Which of the names commonly used to describe the following groups of organisms, represent actual monophyletic groups?    1. Birds (including all feathered tetrapods)   2. Reptiles (including turtles, crocodilians, lizards and snakes)   3. Bony Fish (including ray-finned and lobe-finned fishes)   4. Mammals (including monotremes, marsupials, and placental mammals)   5. Vertebrates […]

In humans, alkaptonuria is a metabolic disorder in which affected persons produce black urine. Alkaptonuria results from an allele (a) that is recessive to the allele for normal metabolism (A). Sally has normal metabolism, but her brother has alkaptonuria. Sally’s father has alkaptonuria, and her mother has normal metabolism. (a) […]

Needing help Recently it was announced that two major hospital systems would be merging their services in to one entity. Both are comprised of multiple hospital units and specialty clinics. While on the surface, this has been touted as an economical move with substantial savings to both parties and the […]

A manufacturing company is thinking of launching a new product. The company expects to sell $950,000 of the new product in the first year and $1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect incremental costs are estimated at $95,000 a year. The […]