True or false: The inflammatory response involves chemical and physical barriers that help protect the body from harmful substances.

Describe in your own words three purposes of human services.

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.

Akey feature of all epidemiology is the definition of a at risk. select one: a. pathogen b. ethnicity c. population d. lifestyle e. insect