ERIC Number: EJ590301
Record Type: Journal
Publication Date: 1999
Blackworms, Blood Vessel Pulsations and Drug Effects.
Lesiuk, Nalena M.; Drewes, Charles D.
American Biology Teacher, v61 n1 p48-53 Jan 1999
Introduces the freshwater oligochaete worm, lumbriculus variegatus (common name: blackworms), an organism that is well suited for classroom study because of its closed circulatory system. Describes a set of simple, fast, noninvasive, and inexpensive methods for observing pulsations of the worm's dorsal blood vessels under baseline conditions, and follows treatment with nicotine and caffeine, two well-known pharmacological agents. (CCM)
Publication Type: Guides - Classroom - Teacher; Journal Articles
Education Level: N/A
Authoring Institution: N/A