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Last week my classes studied symbiotic relationships, and looked at lichen samples on rocks and under their microscopes. They saw the fungal hyphae both as a sponge-like mass at the edge of broken pieces of lichen, and as individual pieces of clear, colorless tubes under the microscope. They also saw the single-celled photosynthetic algae under the microscopes.
Questions:
1. Are there lichen in the arctic - I seem to recall that reindeer eat them on land. And I've heard of and seen pink snow that I remember is made by algae on/in snow. And bacteria is 'everywhere.' Is there any such thing as ice or snow lichen? [where the ice sticks around long enough]
2. Are there examples of any type of symbiotic relationships in the Arctic marine environment?
Mr. Pittenger