Neco 2015 Verified Biology Obj Type B
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(51-60) CEBADBEDAC ...VERIFYED BIOLOGY
QUESTION
1a).define population
ii).list two biotic & two abiotic
factor that affect population
iii).name two national & 2 international agencies that
contribute towards reducing the
suffering of victims during
natural disaster 1b).draw and
label diagram of the longitudinal
section of the mammalian skin (8-10cm) 3a)define transpiration
ii).state 3 factors that affect the
rate of transpiration
iii).mention 3 part of plant in
which transpiration take place
b).name 3 example of morphological variation in man
bii).list 5 function of mammalian
skeleton
iii).name the two type of
germination and give one
example each 2).list 2 example each of the following
parasite plants
insectivorous plant
xerophytic plants
ii).give 2 differences between
intra-specific and inter-specific competition of organisms in a
habitat iii).state 3 modes of
nutrition in plants
b).give 2 example each of a
stem tuber and root tuber
ii)state the function of the following
plagellium
ribosome
chlorophyII biology answer (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
====COMPLETED====add us on 2go Sunery6
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