The following actions will you protect yourself from common environmental hazards except:
a. swimming in or drinking from polluted water sources
b. making sure the paint in your home does not contain lead
c. staying away from areas where pesticides have been used
d. avoiding the outdoors when an air quality advisory has been issued

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.

What is the principle whereby improvement occurs when increased demands are made upon the body

If you have a stage 1 tumor, what would this indicate? that the tumor is confined to the organ where it started. that the tumor has grown into the surrounding tissue. that the tumor has invaded the lymph nodes. that the cancer has spread throughout the body.