Explain why playing on sports teams in high school is presently being debated as possibly unsafe. What will be an ideal response?
ANSWER: Head impacts, such as are common in football and other contact sports, can cause a minor
traumatic injury called a concussion. Usually a concussion resolves in seven to ten days.
However, repeated head injuries can cause a neurodegenerative disorder called chronic
traumatic encephalopathy (CTE). This disorder can cause memory loss, emotional problems,
suicidal impulses, depression and dementia.
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Characterize the demographic transition seen in the human population. When did it occur?
What will be an ideal response?
The major problem associated with Luft's Syndrome is
a. insufficient ATP production. b. slow metabolism. c. too few mitochondria. d. excessive ATP production. e. low cellular oxygen consumption
A microbiologist inoculates Staphylococcus aureus into a culture medium. Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture. What is the most likely explanation?
A. The microbiologist used too much inoculum. B. The incubation temperature was incorrect. C. The culture medium must be selective. D. The culture is contaminated. E. The culture medium must be differential.
Laboratory animals must be used to determine lethal and infectious doses of viruses.
Answer the following statement true (T) or false (F)