Leading source of lead in U.S.
a. Fuel combustion
b. Waste disposal
C. Metal processing
D. Non-road engines and vehicles
Ans: C. Metal processing
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The ability to roll the edges of the tongue upward in a U-shape is considered to be an inherited trait. The standard assumption is that tongue-rolling is a dominant allele at a single gene locus. Which of the following would cast doubt on this assumption? Select all that apply.A) A student who can roll his tongue has both a mother and father who cannot.B) In a large research study, the majority of tongue-rollers were male.C) A research study with 1,000 participants reports that most non-tongue-rollers can learn to roll their tongues.D) A student who cannot roll his tongue has both a mother and father who can.
What will be an ideal response?
Pneumonia is
A) shortness of breath. B) inflammation of the entire lower respiratory tract except the lungs. C) wheezing or loud breathing associated with airway obstruction. D) rapid swelling of the airway that can block breathing. E) inflammation of the alveoli which interferes with gas exchange.
Blood smears are used in diagnosis of
A. African sleeping sickness. B. toxoplasmosis. C. malaria. D. African sleeping sickness and malaria. E. toxoplasmosis and malaria.
Unlike members of domain Bacteria, most archaeans have linear chromosomes.
Answer the following statement true (T) or false (F)