1. Which symbiotic relationship are the following examples 1
Which symbiotic relationship are the following examples 1. Spider building a web in a tree. 2. Protozoans that live inside termites and help them digest wood. 3. Fleas and mosquitoes feed on blood from other organisms.
Agenda for Wednesday Jan 25th
Succession notes with worksheet
Finish lab

2. Succession
Succession is the changes that take place in a community as it gets older
Primary and Secondary
Climax community is the last stage of succession
Stable - little change in species

3. Primary Succession No top soil only rare rock Very slow!
Pioneer species (lichens/mosses) create soil by breaking down rocks
Very slow!

6. Secondary Succession Disturbance disrupts a community
Fire, flood, windstorm, etc
Soil and some species remain
New plants/animals may take over at first
Natural tendency for species of mature community to return

8. Which type of succession is faster?
Check Your Knowledge
Which type of succession is faster?
A: Secondary! There is already soil present and areas nearby will help populate it

9. Pond Succession

10. Blaine High School 1979

12. Wetland Succession in Action