Tuesday 23rd June
Paper III & II: Objective & Essay - Biology = 10:00am 12:30pm
BIOLOGY NECO 2015/2016 EXPO NOW AVAILABLE FOR OBJ AND THEORYPaper III & II: Objective & Essay - Biology = 10:00am 12:30pm
TYPE A
1-10) BAEC–DDBA
11-20)CCEBBBDEAC
21-30)CAACABBABB
TYPE D
1-10BBBCACCEBA
11-20AEEEACCDBB
21-30CEEACCDABB
2a)
(i) Algae; – They are microscopic green
plants – They
are mostly found in aquatic habitat
(ii) Fungi; – They non
green plants – They are saprophytic or
parasitic (iii) –
Transport of oxygen – Temperature
regulation –
Transpotation of digested food –
Transportation of
excretory product – Transpotation of
homones – Defence
against infection
.: 3ai)
-calyx
-corolla
-androecium
-gynoecium
BIOLOGY NECO 2015 OBJ AND THEORY ANS
Type B
1-10. CDAAAAEEED
11-20. BEAEABECDC
21-30. EEDBCAACDE
31-40. DABDBBCCEC
41-50. CAECBAAEBC
51-60. CEBADBEDAC
-----------------------
1
(ai)
Population can be defined as
the total number of organisms
of the same species living
together in a given area at a
particular time.
(aii)
Biotic factors (i) food (ii)
pathogens
Abiotic factors (i) rainfall (ii)
temperature
(aiii)
National agencies (i) NEMA (ii)
NMA
International agencies (i) WHO
(ii)international Red cross
society
1b.
A longitudinal section of the
mammalian skin
-----------------------
2
(ai)
-Parasitic plants (i) dodder plant
(ii) Mistletoe
-Insectivorous plants (i) sundew
(ii) bludderwort
-Xerophytic plants (i) cactic (ii)
Aloe
(aii)
Tabulate
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
(aiii)
(i)Holophytic nutrition (ii)
parasitic nutrition (iii)
carnivorous nutrition
(bi)
Stem tuber: (a) potato (b) yam
Root tuber : (a) cassava (b)carrot
(bii)
-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
-----------------------
3
(ai)
Transpiration can be defined as
removal of excess water from
plants into the atmosphere in
form of water vapour
(aii)
(i)The size of stomata pores (ii)
Humidity (iii) temperature
(aiii)
(i)Stomata (ii) lenticels (iii)
cuticle
(bi)
(i)Height of the body (ii) shape
of the body (iii) fingerprint
(bii)
(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
(biii)
(i)Epigeal germination – bean
(ii)Hypogeal germination – maize
-----------------------
4
(ai)
Micro-nutrients: (i) zinc (ii) boron
Macro- nutrients: (i) nitrogen (ii)
phosphorus (iii) sulphur
(aii)
(i)Neural canal (ii) centrum
(aiii)
(i)It helps the plants in mineral
conduction
(ii)It helps the plants in water
conduction
(iii)It store food for plant
(aiv)
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
-----------------------
(5)
(ai)
(i)Cutting (ii) layering (iii)
grafting (iv) marcothing
(aii)
(i)Pepsin – protein (ii) Renin –
milk
(aiii)
Phytoplanletone ==>mosquito
larva ==>tilapia ==> shark
(bi)
Tabulate
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
(bii)
(i)Carbon dioxide (ii) water
vapour
(biii)
(i)The liver regulates the blood
sugar level
(ii)It helps in the storage of
vitamins
(iii)It detoxifies poisonous and
toxic materials
Keep refreshing.....Answers will be posted here upon confirmation
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