2017/18 NECO BIOLOGY QUESTIONS AND ANSWERS

Bio-prat-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

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

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

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

Bio-prat-Answer

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

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

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

(4ai.)

Specimen L ------- Terrestrial habitat

Specimen M ------ Terrestrial habitat

Specimen N -------Terrestrial habitat

II.

Specimen L --------- Photosynthesis/autotrophic.

Specimen M -------- Biting and chewing / heterotrophic

Specimen N --------Saprophytic

iii. Specimen L ----- They are green plants therefore they

are able to produce their own food through

photosynthesis.

Specimen M ----- They have maxilla and mandibles that

are adapted to bite and chew grasses.

(4bi.) They all lives in the same habitat and they depend on

each other to survive.

Freshly uprooted grass ----- grasshopper --------Mushroom

(ii.) sources of food for man.

reduction of crop yields.

(iii.) Using of insecticides.