Notes

pika-There furry paws provide traction for them as they scramble along across snow. Pikas' thick, brown fur and round bodies help them conserve heat.
Located in Alaska, Northern Canada, edges of Greenland, Northern Scandinavia, northern Siberia, and Russia.

Parasitism-The liver tapeworm cysts tend to stay and grow in the body of various animals like moose, caribou and even wolves. These tapeworms then feed on the food that is eaten by these animals

commensalim-That's when the caribou digs the ground snow in a quest to find food, it digs up the soil.the arctic fox follows making deeper holes in the soil to get what mammals it can.

mutualism-The alga uses photosynthesis in nature  and  that reduces carbon dioxide into sugars that feeds the fungus as well. The fungal counterpart in the meantime, helps provide protection to the alga by retaining water and helping in obtaining minerals from substrate.

predation- Ermines main diet is rabbit. The rabbit dosent get anything out of this relationship but death.

competition-the arctic fox and the red fox both have the same interest in food so they both have to cpmete and see who get to the food first.

communication-The tundra biome covers about 20% of the Earth. The tundra biome is the driest place on Earth. Rainfall averages ten inches a year. During the summer, it is daylight 24 hours a day.The tundra biome has about 400 varieties of flowers but only 48 different animals.