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Author Topic: 2015 NECO BIOLOGY  (Read 2366 times)

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Offline JEFFREY96

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2015 NECO BIOLOGY
« on: June 22, 2015, 11:38:46 pm »
(BIOLOGY )
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    Offline joylence

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    Re: 2015 NECO BIOLOGY
    « Reply #1 on: June 23, 2015, 05:24:50 am »
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    Offline Macdennis

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    Re: 2015 NECO BIOLOGY
    « Reply #2 on: June 23, 2015, 07:07:23 am »
    Pls, i nid ur help on today exam Biology, sent me d answers pls.

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    Re: 2015 NECO BIOLOGY
    « Reply #3 on: June 23, 2015, 09:36:18 am »
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    Offline JEFFREY96

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    Re: 2015 NECO BIOLOGY
    « Reply #4 on: June 23, 2015, 09:55:16 am »
    stop telling disturbing us about blastexams.com we love earlyface ;)
    tanks
       
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    Offline JEFFREY96

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    Re: 2015 NECO BIOLOGY
    « Reply #5 on: June 23, 2015, 10:03:17 am »
    2 more comment needed to unlock the answers
       
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    Re: 2015 NECO BIOLOGY
    « Reply #6 on: June 23, 2015, 10:09:09 am »
    Earlyface on top.

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    Re: 2015 NECO BIOLOGY
    « Reply #7 on: June 23, 2015, 10:10:22 am »
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    Re: 2015 NECO BIOLOGY
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    Offline JEFFREY96

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    Re: 2015 NECO BIOLOGY
    « Reply #9 on: June 23, 2015, 10:35:54 am »
    BIOLOGY OBJ
    Type B
    1-10.  CDAAAAEEED
    11-20. BEAEABECDC
    21-30. EEDBCAACDE
    31-40. DABDBBCCEC
    41-50. CAECBAAEBC
    51-60. CEBADBEDAC[/color]

    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
    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
    written obj
    1. C-gamette
    2. D-pisces
    3. A-Darwin
    4. C-sneezing
    5. A-cochlea
    6. D-retina
    7. E-vulva
    8. E-pigeon
    9. D-mealy bug
    10. D-influenza
    11. B-cholera
    12. E-spirogyra
    13. A-chicken
    14. E-nephridium
    15. D-population
    16. C-hydrophytes
    17. E-stability in appearance and spices composition
    18. C-rat
    19. D-millon's Reagent
    20. C-isotonic
    21. E-thoracic
    22. E-transverse process
    23. D-passage of spinal  cord
    24. B-cervix
    25. C-III
    26. A-I
    27. A-choroid
    28. C-oxygen
    29. D-seechi disc
    30. E-spices
    31. D-mollusca
    32. A-cell membrane
    33. B-auxins
    34. D-pineapple
    35. B-coffee leaf rust
    36. B-kidney
    37. C-femur
    38. C-ptyalin
    39. E-neurone
    40-49......
    50. E-sweep net
    51. C-starfish
    52. E-viruses
    53. B-leucocytes
    54. A-hepatic
    55. D-tilapia
    56. B-bacteria
    57. D-nucleic material
    58. D-plasmolysis
    59. A-cilium
    60. C-mitochondrion





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