Which of the following is not true about glaciers?
a. they originate on land
b. they exist only in the northern hemisphere
c. they show evidence of past or present flow
d. they form from the recrystallization of snow

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.