Numerical dates based on radioactivity are very important for studying precambrian geologic history because fossils are rare or absent. a. true b. false

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Plz ! what does it mean for an allele to be dominant?

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.