The form of a trait that is covered up by another is called

recessive allele . trait is covered up, or dominated,by another form of that trait and seems to disappear ,represented by lower case letters

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.