What is the hour cycle of the circadian rhythm? How do animals living in cold environment retain core heat? What are the four main steps of processing food?

Name: Notes for week of November 9-13
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Animal form And Function  Like at the molecular level, the higher levels form determines function  Physiology the study of the biological functions o Integrates all levels of organization from molecules to the whole organism o Much of physiology is studied at the cell/tissue level Common problems to solve  While there is great diversity among animal forms there are conserved problems to solve o Obtaining nutrients from the environment o Excreting undigested material o Obtaining oxygen for cellular respiration o Removing wastes CO2 o Moving molecules throughout the body to reach cells o Excreteing waste products