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Author Question: Which statement is true about using a questionnaire to collect data? a. Questions are presented ... (Read 34 times) |
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.