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Author Topic: Real NECO GCE Biology Objective (OBJ) & Essay 2012 Questions and Answers  (Read 2649 times)

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Offline MEGAX

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BIOLOGY OBJ
1-10: DBEBBEACCA
11-20:EDDCBABEBA
21-30: ACCEABBCBB
31-40: BACACEEAAD
41-50: ABACABBCBC
51-60: EEAAEABCAD.

THEORY ANSWERS:
(1a) 
(I)Diffussion is defined as the rpocess by which molecules or ions of a substance(I.e gases and liquids)move from a region of higher concentration to a region of lower concentration until they are evenly distributed. 
(Ii) 
-robert hooke 
-felix dujardin 
(1b) 
(I)Pathogen are commonly dreaded as disease-causing agents and are mainly the parasitic micro-organism 
(Ii) 
-through the nose and mouth e.g influenza virus. 
-thorogh cuts,wounds and abrasions on the skin e.g clostridium tetani 
(Iii) 
-xylem 
-sclerenchyma 
-collenchyma 
-turgid parenchyma 
(1c) 
(I) 
-A group 
-B group 
-AB group 
-O group

(3a) 
(I)Studying the distributions of living organism 
-measuring factors affecting the environment   
-finding out how living organism depend on one another and their non-living organism depend on one another and their non liivng environment for their survival 
(Ii) 
-increase in the rate of crimes 
-increase in death rate 
-competition 
-diseases
(3bi)
(I)Transpiration helps water to move up the xylem vessels so that it can be distributed to all the plant cells for their cellular activity
(Ii)Transpiration helps mineral salts dissolved in the water to be trasported to the leave for the synthesis of complex substances.
(Iii)It also helps to cool plants
(3bii)
Oxygen
Water vaible seeds
Optimum temperature
(3biii)
-middle lamella
-veins of leaf


(3ci)
(I)Genotype is the total of genses present in the cells of an organism. It also refers to the pair of alleles at a single genes locus.
(Ii)Phenotype is the observale(visible) expression of the characters of an organism resulting from the interaction between its genes and its environment

(4)(A)(I)
Pollution is the direct or indirect cultivation alteration of the physical,thermal,biological or radiactive properties of any part of the environment in such a way that to create hazard or dangerous to health,safety or welfare of any living species.
(Ii)
-biodegradable
-non-renewable
-poisson
-sewage
-death of living organisms
-oil spillage
(4b)(I)
Fossil records
Embroyology
Molecular records

MORE THEORY ANSWERS LOADING.....



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    Offline Vicvampi

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    Omo...guys...abeg o!...make una do us well o... Abeg...
    I know I'll see ma Jesus someday

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    Offline Vicvampi

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    I mean Biology o...abeg o
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    Offline Jack91

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    I got network problem 2day in chemistry and i was out of reach. Pls i need biology in time. Thanks

    Offline sunnyoga

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    we need biology....

    Offline Ronaldo

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    thank you my oga

    Offline gudjohnson87

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    please o...! make u na  send it quickly o..abeg na dey beg o.

    Offline Harrison45

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    Plz we need runz plz us

    Offline Harrison45

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    plz can you post the qustions for us before the exma star

    Offline Vicvampi

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    Wow...its today o my people...its biology o...hmm
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    Offline simon

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    Abeg x.una tried yesterday no be lie.just dat d pasting was little bit late.thanks men.i need today's biology abeg

    Offline Vicvampi

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    hmm...megax day online... Thank God o
    I know I'll see ma Jesus someday

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    Offline Vicvampi

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    hmm...megax day online... Thank God o
    I know I'll see ma Jesus someday

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    Offline Muhammadsalis

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    I give my salute xbranians...we nid u 2 kip helpin us lyk u hv bin doin...plz we nid d biology xpo 4 2day

    Offline Jack91

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    Thanks Earlyface. We need biology today. Hope it wil post on time. Pls.

    Offline Dayo d1

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    I nid dat biology

    Offline Olamide686

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    Ples i nid the answers no, time as gone
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    Offline rashe5

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