Why is survival of the fittest important

Were you able to observe the nucleolus in any of the cells if so which ones

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.

Abacteriophage typically attaches to the bacterium and then