Slipped disks are very common in the United States. Which of the following can cause a slipped disk?

A) improper lifting, leading to a bulge in a disk between two lumbar vertebrae
B) scoliosis
C) two vertebrae of the sacrum slipping past each other in opposite directions
D) slipping on the ice in winter and breaking a vertebra of the coccyx


Answer: A

Biology & Microbiology

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A human pedigree ____

a. is a family tree chart showing birth and death dates b. certifies that an individual has a particular genome c. certifies good genetic health d. represents the inheritance of a trait through several generations of a family e. summarizes the health history of an individual and his/her parents

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A plant that grows one year, dies back, and then grows again the following year, produces flowers and then dies would be considered _____

A) annual B) biennial C) perennial D) not very fit

Biology & Microbiology

Astronomers have detected the presence of various chemicals in deep space similar to those thought to have been synthesized in Earth's early atmosphere. The environments where those deep space molecules originated would be most likely to contain ________

A) low oxygen, ultraviolet light, methane, nitrogen, and hydrogen B) abundant oxygen, no ultraviolet light, methane, nitrogen, and hydrogen C) oxygen, no ultraviolet light, and carbon monoxide D) abundant oxygen, ultraviolet light, methane, nitrogen, and hydrogen

Biology & Microbiology

Eugenics ____

a. has been scientifically tested and shown to be a valid theory b. is a dubious method for improving the human species through selective breeding c. assumes that human traits are much more influenced by environment than by genes d. had major social ramifications in Germany but is largely dismissed in the United States e. was based on faulty karyotyping and DNA analysis

Biology & Microbiology