In a species of rat, height is a polygenic trait. What does it mean for this trait to be polygenic?

Does masterbation affect height growth or loss of growth hormone?

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.

All eukaryotic cells contain small bodies called