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Neco 2018 Biology Theory & Obj Questions & Answers – May/June Expo

By | On May 30, 2018 (6 months ago)

Neco 2018 Biology Obj & Theory Questions and Answers NOW 100% AVAILABLE WITH US.

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BIOLOGY OBJ:

1-10: BBEADBEEEC

11-20: DADBDCDDDB

21-30: ADECBDADEC

31-40: DADAAAACBA

41-50: BCEABCCCDB

51-60: EABBDDCCBB

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(1a)

(i) Sunlight: It is source of energy for during photosynthesis

(ii) Chlorophyl: It traps solar energy and coverts it to chemical energy during photosynthesis  
(1b) 

(i) Humerus

(ii) Radius

(iii) Ulna

(iv) Scapula

(v) The ball and socket joint 
(1c)  

(i) They help in gathering food for the caste

(ii) circulating and maintaining the colony’s pheromones and food among each other via trophallaxis, 

(iii) They help in tending to the eggs and nymphs

(iv) They help in taking care of the queen and king

(v) They help in constructing or repairing the nest, tunnels, galleries, feeding tunnels
(1d) 

Ecosystem is a community of interaction between organisms and their environment.
(1e) 

DRAWING

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2ai 

 a gene is a sequence of DNA or RNA which codes for a molecule that has a function. During gene expression, the DNA is first copied into RNA.

2aii

Implantation: The act of setting in firmly. In embryology, implantation refers specifically to the attachment of the fertilized egg to the uterine lining, which occurs approximately 6 or 7 days after conception (fertilization).
2aiii

a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g. Homo sapiens.
2aiv

A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.
2bi) 

i) it gives support and shape to the body
II) it helps in the production of white blood cells 
iii)it aids free movements 
iv) it helps in the attachment of muscles

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(3a)

(i) Diabetes modditues

(ii) Gell stone

(iii) infective hepatitis

(iv) cancer of the Liver
(3aii)

TABULATE:

Under Plant cell

(i) presence of cell wall

(ii) presence of chloroplast

(iii) Presence of sparse cytoplasm

(iv) presence of small vacuole

(v) Absence of centrosome
Under Animal cell

(i) Absence of cell wall

(ii) Absence of chloroplasts

(iii) Presence of dense cytoplasm

(iv) Presence of small vacuole

(v) Presence of Centrosome
(3b) DRAW THE DIAGRAM

(3ci)

(i) Parenchyma

(ii) Collenchyma
(3cii)

(i) it ensure fertilization takes place intenolsy

(ii) the released the eggs and despite on the egg as they move down the widuct

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4ai) diffusion is defined as the process by which molecules or ion move from a region of high concentrations to a region of low concentration until they are evenly distributed

4ai) diffusion is defined as the process by which molecules or ion move from a region of high concentrations to a region of low concentration until they are evenly 
4aii) osmosis is defined as the process by which water molecules move from a region of dilute or wicker solution to stronger solution

 through a selectively or permeable membrane
4aiii) plasmolysis is defined as the outward movement or flow of water from a living cell when they are place in an hyoertonic solution

4bi) effect of over crowding are ;

Aggressive behavior 

State of unrest 

Decrease in reproductive ability
4bii) conservation of wild life are;

Indiscriminate killing of wildlife should be discouraged 

Deforestation which destroy the habitat of animal should be discouraged 

Killing of young developing animals should be allow

=====================

4ai) diffusion is defined as the process by which molecules or ion move from a region of high concentrations to a region of low concentration until they are evenly distributed

4ai) diffusion is defined as the process by which molecules or ion move from a region of high concentrations to a region of low concentration until they are evenly 
4aii) osmosis is defined as the process by which water molecules move from a region of dilute or wicker solution to stronger solution

 through a selectively or permeable membrane
4aiii) plasmolysis is defined as the outward movement or flow of water from a living cell when they are place in an hyoertonic solution

4bi) effect of over crowding are ;

Aggressive behavior 

State of unrest 

Decrease in reproductive ability
4bii) conservation of wild life are;

Indiscriminate killing of wildlife should be discouraged 

Deforestation which destroy the habitat of animal should be discouraged 

Killing of young developing animals should be allow

======================

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