MICRO-ORGANISMS IN THE ENVIRONMENT. ABBOTTS COLLEGE. MAINTAING A BALANCE IN THE ENVIRONMENT. PAGE 9. Most micro-organisms are harmless or extremely useful Play a role in keeping eco-systems stable They give the environment a better chance to survive changes or threats
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MICRO-ORGANISMS IN THE ENVIRONMENT
LEARNING ACTIVITY 7: KEEPING ENVIRONMENT BALANCED
Figure 1: Location of normal microbial flora
bacterial cells in the human flora
Nodules formed where Rhizobium bacteria infected soybean roots
Rhizobiumleguminosarum nitrogen fixing bacteria.
70 â€“ 80% of all plants have mycorrhizae
The fungi send out hyphae to increase
surface area of the plant roots
LEARNING ACTIVITY 8: MUTUALISM