What is earth's crust?

a layer of radioactivity on earth's surface

a middle layer of earth that moves

the liquid rock in earth’s interior

the outermost layer on earth’s surface

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.