Three genes in fruit flies affect a particular trait, and one dominant allele of each gene is necessary to get a wild-type phenotype.

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

Vessels draining the myocardium of the heart, open primarily ,into which chamber?