Neco 2017/2018 Biology Practical Free Expo Answers Tuesday 13thJune 2017 Practical: Biology 10Am - 12Pm BIOLOGY PRACTICAL ANSWER 1...
Neco 2017/2018 Biology Practical Free Expo Answers
Tuesday 13thJune 2017Practical: Biology 10Am - 12Pm
BIOLOGY PRACTICAL ANSWER
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
3ai)
M-Adult butterfly
N-prawn
O-earthworm
P-tapeworm
3aii)
M-the class to which it belongs is INSECTA
3aiii)
OBSERVATION Feature of M.
i. A pair of clubbed antenae
Ii. A head,thorax and abdomen
Iii.wings.
3aiv)
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
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*COMPLETED*
*GOODLUCK*
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