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Biology Neco 2015 Answers Available Now!!!

Tuesday 23rd June Paper III & II: Objective &
Essay –
Biology = 10:00am 12:30pm

Type B

Population can be defined as the total number of organisms of the same species living together in a given area at a particular time.

Biotic factors (i) food (ii) pathogens
Abiotic factors (i) rainfall (ii) temperature

National agencies (i) NEMA (ii) NMA
International agencies (i) WHO (ii)international Red cross society


-Parasitic plants (i) dodder plant (ii) Mistletoe
-Insectivorous plants (i) sundew (ii) bludderwort
-Xerophytic plants (i) cactic (ii) Aloe


intra-specific competition
(i)Organisms of the same species are involved
(ii)The number of species are many
Inter-specific competition
(i)Organisms of different species are involved
(ii)The number of the species are not too many

(i)Holophytic nutrition (ii) parasitic nutrition (iii) carnivorous nutrition

Stem tuber: (a) potato (b) yam
Root tuber : (a) cassava (b)carrot

-Mitochondrion: it is where energy is released from simple sugar
-Chlorophyll: it traps light energy from sunlight for photosynthesis
-Contractile vacuole: it is used for excretion
-Flagellum : it is used for movement
-Ribosome: it meant for protein synthesis

Transpiration can be defined as removal of excess water from plants into the atmosphere in form of water vapour

(i)The size of stomata pores (ii) Humidity (iii) temperature

(i)Stomata (ii) lenticels (iii) cuticle

(i)Height of the body (ii) shape of the body (iii) fingerprint

(i)It protects important and delicate organs of the body
(ii)It gives support to the body
(iii)It aids in respiration
(iv)It gives shapes to the body
(v)It provides place for attachment of muscles

(i)Epigeal germination – bean
(ii)Hypogeal germination – maize

Micro-nutrients: (i) zinc (ii) boron
Macro- nutrients: (i) nitrogen (ii) phosphorus (iii) sulphur
(i)Neural canal (ii) centrum

(i)It helps the plants in mineral conduction
(ii)It helps the plants in water conduction
(iii)It store food for plant

The process of breathing in man involves two phases. These are external and internal respiration. The external respiration involves breathing in oxygen into the lungs called inhalation and breathing out of carbon(iv)oxide called exhalation.
The inhalation process is as follows. The thoracic cavity increases in volume; diaphragm contracts, the sternum moves forward together with the ribs, there is an increase in the volume of thoracic cavity and air from outside is drawn into the lungs through the nose

(i)Cutting (ii) layering (iii) grafting (iv) marcothing

(i)Pepsin – protein (ii) Renin – milk

Phytoplanletone ==>mosquito larva ==>tilapia ==> shark


Aerobic respiration
(i)Oxygen is required
(ii)More energy is release
(iii)It takes place in the mitochondria
(iv)Water is given off as by-product

Anaerobic respiration
(i)Oxygen is not required
(ii)Less energy is released
(iii)It takes in cytoplasm
(iv)Alcohol is given of as by-product

(i)Carbon dioxide (ii) water vapour

(i)The liver regulates the blood sugar level
(ii)It helps in the storage of vitamins
(iii)It detoxifies poisonous and toxic materials


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