Which of the following is not true of red blood cells?
A) They are destroyed in the kidneys.
B) They are formed in bone marrow.
C) They have a nucleus.
D) None, all of these are true.
C
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Whereas race is a problematic way of differentiating human beings based on physical characteristics such as skin color, ________ creates differences out of cultural traits and complexes
A) ethnicity B) gender C) class D) racism E) cultural nationalism
Which three states comprise over 50% of the Hispanic population of the USA?
A) California, Illinois and New York B) California, Arizona and New Mexico C) California, New York and New Jersey D) California, Texas and Florida E) Texas, Florida and New York
What is carbon-14 dating useful for in terms of age and type of sample? What will be an ideal response?
Estuaries containing different mixtures of fresh and saltwater throughout most of their length are: a. salt wedge estuaries
b. well-mixed estuaries. c. partially-mixed estuaries d. reverse estuaries.