BIOL-2356EL Lecture Notes - Lecture 8: Hydroxylapatite, Chlorophyll, Dry Matter
6 Oct 2018
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Heterotrophs: need energy as organic molecules (they cannot photosynthesize or chemo synthesize) Can not synthesize all organic molecules ex: essential amino acids, essentially fatty acids and many vitamins must be obtained in food. Beavers prefer the inner bark (phloem and a) which is relatively nutritious. Microbes in beaver guts digest some of the cellulose in the bark. Humans also have eaten inner bark, especially that of pines. This has happened mainly during famines (crops failed) Ex: martes pennanti: these teeth are made for slicing meet. Ex: lontara canadensis: these teeth are made for crushing fish and cray fish. This reflects how humans use different utensils depending what they are eating. Steak knife for meats, butter knife for softer foods. Morphology and structure of an organism tells you about its behaviour and its ecology its ecology. Fungi can also be primary consumers: powdery mildew is biotrophic: it needs living plants. Mammals: mostly protein, fat, and hydroxyapatite (calcium phosphate/bones)
