Nabteb 2015/2016 Biology Practical Availble

1.
i. Blackfly
ii. from the leaves to other parts of plant (upward/downward)
iii.
– two parents are involved
– results information of new varieties
iv.
i. – labial palp
ii. labium
v. artery
vi. because of the high pressure
vii. ciliary muscle alters the focal length
viii. hypothalamus
ix.
i. erythrocyte – transportation of the oxygen from the lungs to the body cell.
ii. leukocyte – defend body against diseases
x.
i. drying
ii. smoking
iii. heating
iv. freezing
xi.
a. Air – nitrogen oxide, co2 gas
b. water – sewage, oil spillage
xii. secchi disc
xiii. meiosis
xiv.
– has nodes and internides
– presence of creeps under the ground
xv. endolymph

2a.
i. light blue precipitate
ii blue colouration
iii. l deep blue colouration
iv. deeply blue colouration

2b.
diffusion
2c.
– Respiration
– circulation
– excretion

2d. experiment to show the rate of diffusion using crystal

2e. not to alter the natural rate of diffusion.

4a.
D- cocoyam
E – Bean seed
F – Ginger
G – Onion bulb
H – Maize grain

4c.
TABULATE. E – Bean Seed, H – Maize grain

UNDER E – Bean Seed WRITE:
– It is legume
– it is a dicotes
– has broad leaf

UNDER H – Maize Grain WRITE:
– it is a cereal
– it has a monocots
– has slender leaf

4c.
ai.
T – tilapia fish
J – toad
aii.
I – Aquatic habitat
T – both aquatic and terestial habitats
bi.
TABULATE.
I – Tilapia fish and J – Toad

UNDER I – Tilapia Fish write:
1. scales present
2. Presence of fins
3. has tail
4. show parental care

UNDER J – Toad WRITE:
1. scales absent
2. presence of limbs
3. has no tail
4. do not show parental care
bii.
– they are cold blooded animal
– both can leave in water
– both are oviparous animals

C.
I
– prices: reason
– they have two chambered heart.

J – amphibia: Reason – they have three chambered heart.

D.
i. Presence of limbs.

3a.
B – pride of Barbados
C – flower of maize

3b.
B – insect
C – wind

3c.
for B insert:
– they process scent
– nectar present
– have bright colour

For C
– Wind
– have dull colour
– Nectar absent
– Scent absent

3d.
TABULATE: B AND C

UNDER B WRITE:
– Has petals
– has nectar
– it is heavy

UNDER C WRITE:
– no petals
– no water
– its is light

3E.
Draw a well labeled pride of barbados

5.
i. graph drawing here
ii. morphological variation
iii.
– applies in crime detection
– in blood transfusion

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