OPEN SYSTEM CIRCULATION CLOSE SYSTEM CIRCULATION Heart not chambered Chambered heart Few short blood vessels for a short distance and…
1. When bleeding occurs, blood platelets break apart 2. Platelets release chemical into the plasma 3. Causing plasma protein prothrombin…
1. Clean with chewing stick/paste and brush everyday 2. Clean teeth with tongue and water after each meal 3. Use…
1. incisor 2. canine 3. premolar 4. molar
Swivel/rotating/pivot joints.
CERVICAL VERTEBRA LUMBAR VERTEBRA Reduced neural spine Short neural spine Reduced transverse process Long transverse process Wide neural canal Narrow…
SANDY SOIL LOAMY SOIL Mainly large sand particle Mixture of clay, sand and silt Has large pore spaces Tiny pore…
1. Fine particles that are closely packed. 2. fine/narrow pore spaces 3. sticky and slippery when wet 4. hard and…
1. mechanical control of soil erosion such as contouring, ridging terracing to prevent top soil from being washed away. 2.…
1. rain water 2. wind 3. human activities