Class notes Life Sciences (Biology) on Sketetal system, transport in animals and excretion
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Course
Life Sciences
Institution
11th Grade
iPad written notes on the sketetal system, transport in animals and excretion. Full of colourful diagrams to help visual learners to understand these sections of biology
iii Molars-flattened chewing food
&
surfaces with cusps used to grind/chew
8 Premolars flattened chewing surfaces with cusps used to
grind food
-
E Canines -
cone shaped and used to tear off pieces of food
S
incisors-chisel shaped use to bite off food
=
2 1 2
. . . 32 Human dental formula
2 .
1 2 . . 35
teeth have differentiated structures
All mammals are het eodant to perform specific functions
, The vertebral column
Neck vertebrae (7)
Chest vertebrae (12)
Note :
Curves lend to flexiblity
Lumbar vertebrae (5)
sacrum
coccyx
function :
-
Supports Skull
Protects spinal cord
-
Attachment for ribs , the pectoral and pelvic girdle
Structure :
Vertebrae tied together by ligaments (prevents dislocation
friction and is absorber)
Between each vertebrae is a disc of fibrous
cartilage (prevents a shock
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