The dotted line in the figure above indicates ____
a. a polar covalent bond
b. van der Waals forces
c. an ionic bond
d. a hydrogen bond
e. a nonpolar covalent bond
D
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Circulation in the accompanying diagram functions primarily as a(n) ____
a. an open circulatory system b. system consisting of mostly of tissue spaces c. closed circulatory system d. interstitial fluid system e. three-directional system
The sex chromosome composition of a person with
Turner syndrome is a. XXX. b. XO. c. XXY. d. XYY. e. none of these.
What are the predicted phenotypes of the children from a union of a woman who is heterozygous for hemophilia and a
man who is normal? (Use the Punnett square to verify your answer.) a. 100% normal b. 75% hemophilia: 25 % normal c. 50% hemophilia: 50% normal d. 25 % hemophilia: 75% normal e. 100% hemophilia
What help move lymph throughout the lymph vessels?
a. constriction of blood vessels b. skeletal muscle and breathing movements c. conscious actions d. dilation of blood vessels