Human activity has introduced species to ecosystems around the globe. Some species are benign or even beneficial while others are causing native species extinctions and damage to human systems. Seven activities using pillbugs, the school grounds, species dispersal maps, and introductory genetics provide students with the skills they need to address this important global question.
| ISBN: | 9780873551670 |
| Publication date: | 30th December 1996 |
| Author: | NSTA Press |
| Publisher: | National Science Teachers Association |
| Format: | Paperback |
| Pagination: | 62 pages |