When the expression of one allele is masked by the presence of another it is said to be what? ?

What do scientists need to look at before developing an argument

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above