2. were the colonies uniform in appearance on the transfer? what could account for any differences
seen?

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

not always but somethings can be reproduced in a laboratory.