BIOL-3030 Lecture Notes - Lecture 10: Stratum Corneum, Stratum Basale, Muscle Contraction
Document Summary
Land and air are different than water physical characteristics. Air is 800x less dense than water. Skeleton has to take over body support. Air has more 02 than water does which makes it easier for animals to move. The air temp is much less stable on land than it is on water. Sensation of electrical fields is not viable on land like in water. Air movement won"t stimulate lateral line system and it is lost in land vertebrates. So . not being surrounded by water can account for water loss, and problems in locomotion. Density of body tissue 1050 kg/m^3. Density of water 998 - 1024 kg/m^3. This is about 800x less than water. Since tissue density is closest to that of waterit is able to minimize effects of gravity. Menas for transmitting forces throughout the body. This is not necessarily required to maintain body shape.
