Which of the following statements about rem sleep is true? question 3 options: while dreaming, eyes may dart around as if watching a dream unfold. dreams occur only in rem sleep. the diaphragm, nasal membranes, and erectile tissue cannot move during dreams because of loss of muscle tone. time spent in rem sleep decreases later in the sleep cycle. save

Which type of food have a high amount of nutrients relative to the number of calories

Select all that apply. which of the following are functions of the skeletal system? 1. to provide the body with a strong and mobile framework 2. to allow the body to move 3. to protect internal organs from sunlight, bacteria, and injury 4. to supply the body with blood cells and minerals

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells. b) viruses have capsids composed of protein, whereas viroids have no capsids. c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna. d) viruses cannot pass through plasmodesmata, whereas viroids can.