WAEC BIOLOGY PRACTICAL/SPECIMEN ANSWERS

By 10:38 Fri, 28 Mar 2014 Comments


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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