BIO120H1 Lecture Notes - Lecture 14: Brown Adipose Tissue, Permafrost
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BIO120H1 Full Course Notes
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Document Summary
The seasons can be organized upon a gradient on two axis, low and high precipitation and low and high temperature. In the tundra, the air mass does not lift though there is precipitation, because of this moisture is very little in these areas. Right underneath the soil of the tundra lies permafrost, in the spring this becomes a tremendous amount of standing water. The tundra has very little decomposition because of the water-logged, lack of oxygen conditions. The soil tends to have anaerobic bacteria, and the soil is low in nutrients due to these low numbers. Diversity is quite low, and the pollination synonomes are specifically generalist pollinators. The fauna of these areas tend to migrate, or else grow shaggy fur or become low in metabolism. Arctic animals in addition can produce brown fat which is molecularly dense. Wind-pollinated grass is abundant in the taiga biomes, due to the fact that wind is a good way to move around pollen.
