According to the table, which two organisms are the most related?
1 and 2
1 and 4
2 and 4
2 and 3
What factor is not used to classify viruses?
motility of particle
Your dog has a runny nose and a cough. You take him to the vet and discover that he has a viral lung infection. What are the chances that you could contract this disease from your dog?
What is an important distinction between viruses and bacteria?
One is alive while the other is not
One contains DNA or RNA while the other does not
One contains proteins while the other does not
One is found naturally in the environment while the other is man-made