Flea, bacteria, virus
Description
Parasitism is discussed in the first section of this program with a comparison of predator- prey and parasite-host relationships. Students will get an understanding of the flea's habits, anatomy and behavior. The structure of bacteria, single-celled organisms, is given in the second section of this program. A comparison of aerobic and anaerobic bacteria is discussed, as well as their harmful and beneficial functions. The last section of this program helps viewers understand what viruses are and how they can infect a host. The influenza virus is highlighted, providing a discussion of vaccination.
Runtime
24 min
Series
Subjects
Date of Publication
2009, c2006
Database
Alexander Street
Direct Link
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