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Wednesday, June 12, 2019

NECO 2018 BIOLOGY OBJ & THEORY/ESSAY QUESTION AND ANSWERS EXPO

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Diffusion is the movement of  (molecules atoms ions) from a region in which they  are in higher concentration until an equilibrium is established
(4ai)
Osmosis this is a spontaneous movement of water molecules through a semi-permeable membrane into a region of higher solute concentration
(4aii) 
Plasmolysis this is a shrinking away of protoplam linear from a cell wall of a paintor bacterium due to water loss from osmosis

(4b)
(i) lack of sleep
(ii) lack of privacy
(iii) poor hygiene
(iv) lost if physical contact

(4bii)
(I)prevention of pollution to prevent the destruction of aquatic life
(ii)prohibition of killing or poaching of animals in game reserve

(4biii)
(I)dog
(ii)horse

(4ci)
Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. 

(4cii)
(i)cockroaches 
(ii)termites

(4ciii)
(i)Tomatoes 
(ii)Oranges

(5a)
DRAW THE DIAGRAM

(5b)
TABULATE (DRAW A TABLE)
(i) Mouth | Stationary gland (Ptyodira)
(ii) Stomach | Renin

(iii) Small Intestine | (Lipase) (Ellipsis) (Maltese)

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