NECO 2017 BIOLOGY PRACTICAL QUESTIONS AND ANSWERS NOW READY

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2017 VERIFIED BIOLOGY PRACTICAL ANSWERS 

From www.042portal.Blogspot.com

1ai)

A=Toad

B=Thoracic Vertebra 

C=Lumbar vertebra 

D= Pride of Barbados 

E=Millipede 

F=Agama Lizard 

1aii) 

DRAW literal view of Thoracic Vertebra (check image in pdf) 

1aiii)

B===>located in chest, attached to the ribs

C===>located in loin

1aiv)

Tabulate 

SPECIMEN B

i)They are 12 in number

ii) they are large

iii) They are rigid

iv)less vulnerable to degenerative conditions 

v) less massive

SPECIMEN C

i)They are only 5

ii)They are the largest 

iii)They are flexible 

iv) more vulnerable to degenerative conditions due to its weight - bearing function 

v) more massive

1v)

i) Both have large centrum 

ii)Both have neural spine 

iii) Both support the body and protect the spinal cord

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 2ai) 

 G- foot of domestic fowl

 H-foot of domestic duck

 I-tomatoe fruit

 J-coconut fruit

 K-dry bean pod

 L-combretion fruit

 2ii) 

 i-they both have claws

 ii-they both have three toes in front and one at the back

 iii-they are both used for walking

 2iii) 

Spc- H is webbed while sec-G is not

 2iv)

i-for scratching

ii-for walking/running i.e locomotion

 2v)

i-prominent hind limb for running away from treats

ii-prominent claws for scratching the ground in search of food

 2bi)

 I- simple sacculent fruit - berry

 J-simple sacculent fruit - drupe

 K-simple dry dehicent fruit- legume

 L-simple dry dehiscent fruit-samara 

2bii)

SPECIMEN I

i)multi seeded

ii) Endocarp is juicy

iii) Mesocarp is juicy

iv)several carpels are founded

v)several ovaries 

SPECIMEN J

i) one seeded

ii)Endocarp is hard

iii) Mesocarp may be fleshy or fibrous 

iv) monocarpels 

v) superior ovary

2biii)

K===>dispersal by explosive mechanism 

L===>disposal of wind

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3i)

M-Adult butterfly

N-prawn

O-earthworm

P-tapeworm

3ii)

M-the class to which it belongs is INSECTA

3iii)

OBSERVATION Feature of M:

 i)A pair of clubbed antenae

 ii)A head,thorax and abdomen

 iii)wings.

 3iv) 

OBSERVABLE feature of N:

i)antenea

ii)pincer

iii)abdomen

iv)swimmerets

v)walking legs

3v)

M- pollination of flowers

N-serve as food to man

3bi)

OBSERVATION FEATURES OF SPECIMEN P

i) scolex

ii)Neck

iii)proglottis

3bii)

Tabulate feature and function

*Feature*

i)Scolex 

*Function*

Scolex bear hooks and suckers with which the worm clings to the wall of the host's intestine

ii)

*Feature*

Neck 

*function*

Hold and supports the scolex

iii) 

*feature*

Proglottis 

*Function*

Bears the testes and ovaries for reproduction

3bii)

O===>the phylum it belong is Annelida

P==>the phylum it belong is Platyhelminthes 

3biii)

i)They help to loosen the top soil

ii)their faeces serve as manure to soil

COMPLETED