confirm neco 2017/2018 biology practical answers

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

1aiii)
B===>located in chest, attached to the ribs
C===>located in loin

1aiv)
Tabulate
SPECIMEN B
i)They are 12 in number
i i) they are large
i i i.) They are rigid
i v)less vulnerable to degenerative conditions
v) less massive

SPECIMEN C
i)They are only 5
i i.)They are the largest
i i i)They are flexible
i v) more vulnerable to degenerative conditions due to its weight – bearing function
v) more massive

1v)
i) Both have large Centrum.
i i)Both have neural spine
i i i) Both support the body and protect the spinal cord

================================

2ai)
G- foot of domestic fowl
H- foot of domestic duck
I- tomatoes fruit
J- coconut fruit
K- dry bean pod
L- combretion fruit

2aii)
i- they both have claws
ii- they both have three toes in front and one at the back
i i i- they are both used for walking

2aiii)
Specimen – H is webbed while sec-G is not

2aiv)
i- for scratching
ii- for walking/running that is locomotion

2av)
i- prominent hind limb for running away from treats
ii- prominent claws for scratching the ground in search of food

2bi)
I- simple succulent fruit – berry
J- simple succulent 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 antenna
i i)A head,thorax and abdomen
i i i)wings.

3aiv)
OBSERVABLE feature of N:
i) antenna
i i) pincer
i i i) abdomen
i v) swimmerets
v)walking legs

3av)
M- pollination of flowers
N- serve as food to man

3bi)
OBSERVATION FEATURES OF SPECIMEN P
i) scolex
i i)Neck
i i i) 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

i i)
*Feature*
Neck
*function*
Hold and supports the scolex

i i i)
*feature*
Proglottis
*Function*
Bears the testes and ovaries for reproduction

We appreciate you for reading Teeloadeders, but we think it will be better you like our facebook fanpage and also follow us on twitter below.
Follow @Teeloadedblog

Are you an artiste? Do you want your music to go viral and reach a large number of audience? Promote your music on TEELOADED by clicking here. You can also advertise your product or brand by clicking here.