Why do older people have more difficulty controlling body temp than younger people do?

The lower respiratory system includes the a. lungs. b. esophogus. c. larynx. d. pharynx

Sweat glands that cause orders during puberty are present in the body from the time of brith

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.