Nov/Dec 2018 Waec Gce Biology Practical Answers

Nov/Dec 2018 Waec Gce Biology Practical Answers

I- Petal
II – Ovule
III – Ovary
Iv – Filament
V- Anther
Vi – Stigma

Female reproductive organ of a flower.



I – It attracts insects for pollution.
II – It produces the seeds.
V – It produces the pollen grains.
VI – It receives the pollen grains for pollination to take place.

E – Marginal placentation
F – Axile placentation
G – Parietal placentation
H – Free central placentation.

E – They are arranged in a single row.
F – They are divided into chambers.
G – The placenta occurs at the edge.
H – The placenta occurs freely in the centre.

E – Delonix Regia.
F – Tomato.
G – Paw-Paw
H – coconut

A Sex male
B Sex female

A – Because is a sperm cell tum
Because D is an enoumerom B

The letter X between cliedram A and B
represent mating (crossbreeding)
1 testis
Ito Sperin Cell
Zygote 2 ci
1 => Because it whene Sperm Cell Que formeel
11 because it has head and tail on for movement
in =) Because the sperm colegg fuse together
1) => it is the product of the Union
The process is meiotic twisiors


4ai) Vertical section of a human skin

i – hair shaft
ii – sebaceous gland
iii – erector muscle
iv – sweat gland
vi – blood vessel
vii – fatty cells
viii – cold sense receptor
ix – dermis
x – epidermis

i) excretion
II) maintenance of a suitable constant body temperature
iii) storage of reserved food
iv) protection
v) osmoregulation


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