Postmenopausal bone loss is primarily associated with decreased levels of the hormone:

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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