https://padlet.com/barrybarron83/ohwef5hjx4mw en-us 2017-04-20 15:32:01 UTC 2025-12-20 04:14:28 UTC hello@padlet.com barrybarron83 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167298600

Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturia, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation. Tundra is separated into two types: arctic tundra and alpine tundra.

]]> 2017-04-20 15:35:00 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167298600 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303584 Soil is formed slowly. A layer of permanently frozen subsoil called permafrost exists, consisting mostly of gravel and finer material.]]> 2017-04-20 15:48:38 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303584 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303610 Rainfall may vary in different regions of the arctic. Yearly precipitation, including melting snow, is 15 to 25 cm (6 to 10 inches).]]> 2017-04-20 15:48:43 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303610 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303636  The average winter temperature is -34° C (-30° F), but the average summer temperature is 3-12° C (37-54° F) which enables this biome to sustain life. ]]> 2017-04-20 15:48:47 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303636 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303669 All of the plants are adapted to sweeping winds and disturbances of the soil. Plants are short and group together to resist the cold temperatures and are protected by the snow during the winter. They can carry out photosynthesis at low temperatures and low light intensities. The growing seasons are short and most plants reproduce by budding and division rather than sexually by flowering. The fauna in the arctic is also diverse:]]> 2017-04-20 15:48:52 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167303669 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167304044 arctic and alpine]]> 2017-04-20 15:49:53 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167304044 smithmadison0906 https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167304080 Animals are adapted to handle long, cold winters and to breed and raise young quickly in the summer. Animals such as mammals and birds also have additional insulation from fat. Many animals hibernate during the winter because food is not abundant. Another alternative is to migrate south in the winter, like birds do. Reptiles and amphibians are few or absent because of the extremely cold temperatures. Because of constant immigration and emigration, the population continually oscillates.]]> 2017-04-20 15:49:59 UTC https://padlet.com/barrybarron83/ohwef5hjx4mw/wish/167304080