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- Gastrointestinal tract (16596 bytes)
4: The GI tract differs substantially from animal to animal. For instance, some animals h...
45: ... of hollow organs joined in a long, twisting tube from the [[mouth]] to the [[anus]] (see figure). Ins...
59: ...ese waves of narrowing push the food and fluid in front of them through each hollow organ.
67: ...the small intestine and dissolved into the juices from the pancreas, liver, and intestine, the content...
69: ...own as fiber, and older cells that have been shed from the mucosa. These materials are propelled into ... - Nutrition (42689 bytes)
4: Between the extremes of optimal health and death from [[starvation]] or [[malnutrition]], there is an...
10: ...hough the digestive process helps to release them from the matrix of the foods where they occur. Any u...
16: ...re hormonally and metabolically favourable than infrequent, haphazard food intake.
20: ... Early diets were primarily [[vegetarian]] with infrequent game meats and fish where available.
27: ...ard reluctantly agreed to a trial. Daniel and his friends received their diet for 10 days and were the... - Avocado (6755 bytes)
2: ... [[Image:Avocado.jpeg|240px]] | caption = Avocado fruit (cv. 'Fuerte'); <br/>left: whole, right: in se...
15: ...nd green skin. The avocado tree does not tolerate freezing temperatures, and so can be grown only in s...
17: ...iant [[ground sloth]]s or [[Gomphothere]]s). This fruit with its mildly toxic pit, co-evolved with tho...
21: ...fluence of [[ethylene (plant hormone)]] gas). The fruit can be left on the tree until required, rather...
23: ...ous flesh. These are occasionally marketed as low-calorie avocados. - Collard greens (5350 bytes)
16: ...uthern [[United States]], and in many parts of [[Africa]]. They are classified in the same [[Cultivar|...
18: ...g countries. The name "collard" is said to derive from [[Anglo-Saxon language|Anglo-Saxon]] ''colewort...
22: ...cultivars, it is relatively resistant to cold and frost.<!--More details needed-->
24: Collards originate from the [[Mediterranean]] region, and was a regular...
35: ... nutritious in the cold months, after the first [[frost]]s. For best [[flavor]] and [[texture]], the... - Race walking (975 bytes)
1: ...t be straightened (i.e. not bent at the [[knee]]) from the moment of the first impact of the foot with...
5: ...s-wise, mile for mile, it is said to exceed the [[Calorie|caloric]] requirements of running. - Energy (16265 bytes)
5: Energy can be readily transformed from one form into another; for instance, using a ba...
25: ...s in various different units sharing the name of "calorie" but having slightly different energy values. It ...
27: ...vention is also, of course, useless when the word calorie appears in a location where it would ordinarily b...
47: ...nge of the internal energy is the heat that flows from the surroundings into the system plus the work ...
51: ... This law is used in all branches of physics, but frequently violated by quantum mechanics (see [[off ... - Renewable energy (27996 bytes)
1: ...pture their energy from existing flows of energy, from ''on-going natural processes'', such as [[solar...
3: ...n geothermal and [[tidal power]], ultimately come from the [[Sun]]. Some forms are stored solar energy...
5: ...c]] cells, or production of fuels such as ethanol from biomass (see [[alcohol as a fuel]]).
7: ...oil]] equivalent (toe). This is equal to 10,000 [[Calorie|megacal]] or 41,868 MJ of energy.[http://www.iea....
12: ...ost common definition is that renewable energy is from an energy resource that is replaced rapidly by ... - Protein (17280 bytes)
16: ...tructure]]'': the shape or structure that results from the union of more than one protein molecule, us...
24: ...erminus]] (N-terminus) based on the nature of the free group on each extremity.
41: ...ove their [[substrate_(biochemistry)|substrates]] from place to place but do not change them; [[recept...
43: ...several proteins showing their comparative sizes. From left to right are: Immunoglobulin (IgG), Hemogl...
71: - Milk (13238 bytes)
18: ... the human enzymes digesting the milk, can differ from breed to breed and mammal to mammal.
38: ...nt fat for developing toddlers who have graduated from [[breast milk]] or [[infant formula]].
40: ...s of milk currently; most milk brands vary little from each other. These brands include:
42: * [[Anchor (milk)|Anchor]] (a brand from [[Fonterra]])
75: ...uing [[acidity]] in turn prevents other [[germ]]s from growing, or slows their growth significantly. T...
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