BIOL 350 Lecture Notes - Lecture 4: Invertebrate, Catabolism, Paleozoic
Document Summary
Hwy does it matter: scaling and metabolic rate, scaling and locomotion. The relationship between structure and function, in different environments. Proportions do not change, relationships are linear (ex. For every increase in head size there is an equal increase in body weight. The proportions of their body parts to the whole are the same new born is exact miniature version of the adult. Humans: head size gets smaller proportional to body length as a human being grows. O(cid:374) a log s(cid:272)ale, the relatio(cid:374)ship looks li(cid:374)ear (cid:894)that does(cid:374)"t (cid:373)ake it iso(cid:373)etri(cid:272)(cid:895) Insects have trachea instead of lungs, trachea end in holes in the body called spiracles, and this allows for direct circulation of oxygen to the cells of the body. The bigger the insects are the further the oxygen would have to travel, the more difficult it is for oxygen to reach all the cells.
