Human transport system/II
Human transport system/I
Feeding Relationships and Environment/IV
Feeding Relationships and Environment/III
Feeding Relationships and Environment/II
Feeding Relationships and Environment/I
Environment/2
Environment/1
Digestive System/1
Biological classification/9
, oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
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, oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
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 and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).)
 and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).)
 and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).)
 and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).)
. In this
system, the process of digestion has many stages, the first
of which starts in the mouth (oral cavity). Digestion
involves the breakdown of food into smaller and smaller
components, until they can be absorbed and assimilated
into the body. The secretion of saliva helps to produce a
bolus which can be swallowed to pass down the oesophagus
and into the stomach.)
