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WAEC BIOLOGY PRACTICAL/SPECIMEN ANSWERS


EXPECTED WAEC BIOLOGY PRACTICAL
SOLUTIONS

....WARNING:... Note That This MIGHT Not The Actual
Things You Will See In The HALL But Most Of
The Solutions Here Will Come Out; So Study This
Wella. It's Just A Guild To Biology Practical.

.....STUDY THESE:.... SPECIMEN A: YOUNG MAIZE
PLANT
+SOIL REQUIREMENT: well drained loam and silt
loam with fine tilth.

+METHOD OF PROPAGATION:

It is propagated
by seed
+planted manually, mechanically

+VARIETIES/TYPES:

dent,flint,sweet,flour,pop
corn

+CLIMATIC REQUIRMENT:

(20degreec-30degreec)
+RAINFALL OF 760mm-1520mm per annum is
used


.....SPECIMEN B:
MALE FLOWERS OF MAIZE PLANT

+It's also called:"TASSEL",is failrly compact and
much branched. the main axis carries spikelets
and these consist of one SESSILE and PEDICEL.

each flower is composed of an oval,concave lemma
enclosing a membranous palea with the three
stamens and two lodicules. when the flower
matures, the anthers are exposed. the anthers
may be purple,pink or yellow.

SPECIMEN C: FEMALE FLOWERS OF MAIZE PLANT

+It's also known as the COB or EAR. Is has a
modified lateral branch derived from an auxilliary
bud of the main stem. the husk of the female
inflorescence is formed from modified
leaves and this gives protection to the flowers
and the developing seeds. the ovary is
surmounted by a long style, the silk of which
emerges from the top of the husk. pollination is
by means of wind and gravity,the grains are
more pointed at the end where it is attached to
the cob. they are made up of ovary, style and
stigma.

SPECIMEN D: MAIZE GRAIN

+BOTANICAL NAME:ZEA MAYS

+AGRICULTURAL CLASSIFICATION:
CEREALS/ GRAIN CROP

+PEST THAT ATTACK IT: Maize weevils and
borers

USES OF SPECIMEN D

+IT IS USED TO FEED LIVESTOCKS
+IT CAN BE EATEN WHEN BOILED
+IT CAN BE PROCESSED INTO PALP
+IT CAN BE FRIED INTO POP-CORN
+IT CAN BE PLANTED AGAIN WHEN DRIED.

WAYS OF CONTROLLING PEST THAT ATTACKS
SPECIMEN D

+EXCLUSION METHOD/FUMIGANT
+IRRADATION
+CHEMICAL DUSTING/SEED DRESSING
+PHYSICAL CONTROL +DEEP FREEZING/RE
FREGRATION

DISADVANTAGES OF THE CONTROL MEASURE

+AIR POLLUTION
+FOOD POISONING
+REDUCE VIABILITY

DISEASES OF MAIZE

+MAIZE RUST
+LEAF BLITH
+MAIZE STREA
+MAIZE SMUT
+LEAF SPOT

CLASSIFICATION OF MAIZE PLANT

+KINGDON:PLANTAE
+PHYLUM:DIVISION(PLANT)
+ORDER:POALES
+FAMILY:POACEAE
+SUB FAMILY:PANI COIDEAE
+TRIBE:ANDROPOGONEAE
+GENUS:ZEA
+SPERMATOPHHYTA:ANGLOSPERM

DIFFERENCES BETWEEN SPECIMEN B&C
UNDER SPECIMEN B:

+IT HAS A MATURE MAIZE FLOWER CALLED
(TASSEL)
+TASSEL IS FAIRLY COMPACT AND MUCH
BRANCHED
+THE ANTHERS MAY BE PURPLE,PINK OR
YELLOW
+MAIZE POLLEN(ANEMOPHILOUS) ARE
DISPERSED BY WIND
UNDER SPECIMEN C:
+IT HAS A MATURE MAIZE FLOWER CALLED
(EAR OR
COB)
+IT COB HAS A MODIFIED LATERAL BRANCH
+THE EARS IN MAIZE FLOWER
(WHITE,GREEN,RED
AND YELLOW) +POLLINATION IS BY MEANS OF
WIND AND GRAVITY.
+MAIZE GRAIN: IS A MONOCOTYLEDONOUS
AND ENDOSPERMIC SEED. IT IS TRIANGULAR IN
SHAPE.

SPECIMMEN E:
GUINEA RAT(FRESHLY WET
PRESERVED)


.......WAPBAZE.COM.......

CHARACTERISTICS OF MAMMALS:

+THEY ARE HOMOIOTHERMIC OR WARM
BLOODED
+THEIR BODIES ARE COVERED WITH HAIRS
+THEY HAVE HETERODONT DENTITION +THEIR
INTERNAL CARVITY IS DIVIDED INTO CHE
AND ABDOMEN BY A MUSCULAR DIAGHRAGM
+THEY HAVE LUNGS WHICH ARE USED FOR
GASEOUS
EXCHANGE
+THEY HAVE TWO PAIRS OF LIMBS
+THE SKIN CONTAINS GLANDS E.G
(SWEAT,SEBAOEOUS AND MOMMARY GLANDS)
+PRODUCTION IS SEXUAL AND FERTILIZATION
IS
INTERNAL
+THEY HAVE VIVIPAROUS MODE OF
REPRODUCTION
+THEY HAVE A FOUR-CHAMBERED HEART
+THEY HAVE EXTERNAL EARS CALLED PINNAE
LEVELS OF ORGANISATION OF LIFE
+FIRST LEVEL:CELLS
+SECOND LEVEL:TISSUE
+THIRD LEVEL:ORGANS
+FOURTH LEVEL:SYSTEM

THE CLASSIFICATION OF MAMMALS

+KINGDOM:ANIMALIA
+PHYLUM:CHORDATA
+CLASS:MAMMALIA


.....WAPBAZE.COM


+ORDER:
SPECIMEN F(DOMESTIC FOWL)

+SPACIMEN F
(DOMESTIC FOWL)IS A POULTRY
ANIMAL.

IN POULTRY MANAGEMENT: WE HAVE:

+INTENSIVE SYSTEM
+SEMI-INTENSIVE
+EXTENSIVE SYSTEM

-FEEDIND: THEY HAVE SIMPLE STOMACH
WITHOUT
TEETH,THEY FEED CONSTANTLY i.e EVERYTIME
AND
ANYTIME OF THE DAY. THEIR FEED MAY BE RICH
IN PROTEIN,VITAMINS AND MINERAL SALTS.
THERE MUST BE REGULAR SUPPLY OF CLEAN
WATER
HYGIENE IN POULTRY
+USE OF DISINFECTANT AND INSECT REPELL
+BURN AND BURY DEAD BIRDS
+REGULAR CLEANING OF THE FEEDING AND
WATERING TROUGHS
+REMOVE ALL WET LITTER FROM THE FLOOR
+VACCINATE THE HEN AGAINST DISEASES LIKE-
NEWCASTLE, FOWLBOX AND GUMBOX
+PARASITES (BOTH INTERNAL AND EXTERNAL
MUST
BE CONTROLLED
+CONSULT VETENNARY EXPERT ON HYGIENE
PROBLEM


SPECIMEN G: MUD WASP

CLASSIFICATION OF WASP

+KINGDOM:ANIMALIA
+PHYLUM:ARTHROPODA
+CLASS:INSECTA
+ORDER:HYMENOPTERA
+METAMORPHOSIS:COMPLETE
METAMORPHOSIS

-WASP:IT IS A SOCIAL WINGED INSECT WHICH
HAS A NARROW WAIST AND A STING-YELLOW
AND BLACK
STRIPES.


......WAPBAZE.COM....

THIS WASP GROUP IS NAMED FOR THE NESTS
THAT
ARE MADE FROM MUD COLLECTED BY THE
FEMALES.

+FAMILY:SPHECIDAE
SPECIMEN L:(FRESHLY UPROOTED GRASS
SPECIES)

-GRASSLAND IS A PLANT COMMUNITY IN
WHICH
GRASS SPECIES ARE DOMINANNT WITH SHORT
BUT
SCATTERED TREES AND SHRUBS

+KINGDOM:PLATAE
+SPERMATOPHYTA: ANGROSPERM
+MONOCOTYLEDON PLANT
+ORDER:POALES
+FAMILY:POACEAE
+THE GRASS FAMILY: (CEREAL GRAINS,
CORN,SORGHUM,MILLETS,AND PASTURE
GRASSES)

CHARACTERISTICS OF SPECIMEN L

+LEAF SHAPE,LEAF MARGINS AND VARIATION
+LEAF STRUCTURE (SIMPLE OR COMPOUND)
+FLOWER STRUCTURE, COLOUR AND SIZE
+INFLORESCENCE (ARRANGEMENT OF FLOWERS)
+ROOTS, RHIZOMES, AND OTHER
UNDERGROUND STRUCTURE
+HABIT OF GROWTH
(ERECT,PROSTRATE,CLIMBING)
DISTRIBUTION OF PLANT SPECIES IN THE
GRASSLAND
-ACACIA,
-ELEPHANT GRASS,
-GUINEA GRASS,
-SHEAR BUTTER

ADAPTIVE FEATURE OF PLANT IN THE
GRASSLAND

-SPEAR GRASS HAS A RHIZOME WHICH HELPS
THE
PLANT TO WITHSTAND INTENSE HEAT
-ACACIA HAS LONG ROOTS TO SEARCH FOR
WATER
-BAOBAB TREE HAS BROAD AND SUCCULENT
STEM TO
STORE EXCESS WATER -ELEPHANT GRASS: IT
HAS SUCCULENT STEM TO
STORE EXCESS WATER AGAINST DRY SEASON
PALM: THIS PLANT HAS THICK BBARK WHICH
PROTECT IT FROM BEING SEVERELLY BURNT
FOOD CHAIN IN A GRASSLAND HABITAT
GRASS---GRASSHOPPERS---LIZARDS---SNAKE
CLIMATIC FACTORS AFFECTING GRASSLAND
+HIGH TEMPERATURE
+FERTILE SOIL
+LOW RELATIVE HUMILITY
+LIGHT INTENSITY
+MODERATE RAINFALL
SPECIMEN M:(FRESHLY KILLED GRASSHOPPER)
+PHYLUM:ARTHRODA
+CLASS:INSECTA
+ORDER:ORTHOPTERA
+METAMORPHOSIS:INCOMPLETE
METAMORPHOSIS
+HABITAT:GRASSLAND/SAVANNAL FARMS
+KINGDOM:ANIMALIA
+SKELETON:EXOSKELETON(MADE OF CHIT)
CHARACTERISTICS OF SPECIMEN(M)
+GENERALLY LARGE
+USUALLY HERBIVOROUS
+HING LEGS
+AUDITORY ORGANS

ECONOMICS IMPORTANCE OF SPECIMEN M

+SOURCES OF FOODS FOR MAN
+REDUCTION OF CROP YEILDS
+PEST OF PLANT/DESTRUCTION OF LEAVE

ADAPTIVE FEATURES OF SPECIMEN M

+COLOUR BLENDS WITH VEGETATION
+POWERFUL LIMBS FOR HOPPPING
+WINGS FOR FLYING
+CHEWING MOUTH PARTS
+HARDENED FOREWINGS +COPOUND EYES FOR
WIDER VISION
+SPIRACLES FOR GASEOUS EXCHANGE

SPECIMEN N: MUSHROOM

+KINGDOM:FUNGI
+PHYLUM:BASIDIOMYCOTA
+CLASS:HOMOBASIDIOMYCETAE
+ORDER:AGARICALES
+FAMILY:AMANIT

CHARACTERISTICS OF SPECIMEN N

-THEY ARE SIMPLE MULTICELLULAR ORGANS
ARE:
FUNGI AND NON GREEN PLANTS AND
EUCARYOLES
-THEY HAVE NO TRUE ROOTS, STEMS AND
LEAVES
-THEY ARE MAINLY SAPROPHYTES WHILE
OTHERS
PARASITICS -THE VEGETATIVE PLANT BODY IS
MADE OF FINE
AND DELICATE THREADS CALLED HYPH
-THEY REPRODUCE ASEXUALLY BY MEANS OF
SPORES
-THEY ARE MAINLY FOUND IN MOIST
ENVIRONMENT
-EXAMPLES ARE: RHIZOPUS, MUCOR


....WAPBAZE.COM.....

DIFFERENCES BETWEEN SPECIMEN L&N
UNDER SPECIMEN L:

-THE KINGDON HERE IS PLANTAE
-THEY ARE FOUND ON GRASSLAND
-THEY HAVE LEAF MARGINS
-THEY HAVE ROOT -THEY HAVE THICK BARK
STEM
-THEY HAVE INFLORESCENCE FLOWER
UNDER SPECIMEN N:
-THE KINGDOM HERE IS FUNGI
-THEY ARE FOUND ON DECAYED WOOD
-ABSENT OF LEAF AND MARGINS
-NO TRUE ROOT
-THEY HAVE DELICATE THREADS -THEY HAVE
NO FLOWER

DIFFERENCES BETWEEN SPECIMEN E & M

UNDER SPECIMEN E:
-THEY FALL INTO MAMMALIA AS THEIR CLASS
-USE OF LUNG FOR THEIR GASEOUS EXCHANGE
-NO WINGS FOR MOVEMENT

UNDER SPECIMEN M:
-INSECTA AS CLASS
-USE OF SPIRACLES FOR GASEOUS EXCHANGE

-PRESENT FOR MOVEMENT.








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