Which process involves the flow of heat between two matters that are in direct contact?
a. conduction
b. evaporation
c. convection
d. radiation
Ans: a. conduction
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Dietary fiber is an important component of a healthy diet. Which of the following statements is false concerning fiber?
a. Fiber is composed of ground tissue. b. Soluble fiber dissolves in water and is often used to thicken food products. c. Insoluble fiber such as wheat bran does not dissolve in water. d. Insoluble fiber may be particularly healthy, as it binds to cholesterol. e. Insoluble fiber causes undigested material to pass through the digestive system more rapidly.
The most common disorder of skeletal muscles is
1.infection. 2.disease. 3.fatigue. 4.injury. 5.loss of fibers.
If a population of 1000 individuals has 160 aa genotypes, 320 Aa genotypes, and 520 AA genotypes,
the allele frequency of the dominant allele (A) is: a. 0.16 b. 0.42. c. 0.52. d. 0.68. e. 0.89.
What are the predicted phenotypes of the male children from the union of a woman who is heterozygous for
hemophilia and a man who has normal blood clotting characteristics? (Use the Punnett square to verify your answer.) a. all normal b. 3 normal : 1 hemophilia c. 1 hemophilia : 1 normal d. 1 hemophilia : 3 normal e. all hemophiliacs