a) Specimen R.

Mode of pollination: insect pollination: (1mark)

Adaptive features:

i. Large petals to make it conspicuous;

ii. Brightly coloured petals to attract insects (at distance) (2marks)

Specimen SI

Mode of pollination: wind pollination (1mrk)
Adaptive features:
i. Anthers are large attached to long filaments to be easily swayed by wind to disperse pollen grains.

ii. Stigma is large/feathery/hangs outside the flower to increase surface area for trapping pollen grains in the air.

b) Any of these parts labeled on photograph R

-Petal (S)

-Stigma

-Anther

-Style

4marks)

c) X – Filament.

d) Class : dicotyledonous (reject wrong spelling)

Reason: five floral parts/petals.

b) i) Ball and socket joint; (1mark)
ii) Permits movement of limb in all planes/direction/3600. (1mark)

Acc: Permits bone to move in more than one plane/all planes/directions;

c) i) Sacrum (1mark)

ii) -Provides the surface for muscle attachment of pelvic girdle

-Transmits the weight of the body of a stationery animal to pelvic girdle and legs

- Distributes the weight of the body to all parts of vertebral column during movement; (1mrk) Acc: any first one.

d) i) - Long to increase surface area for attachment of intercostals muscles;

- Curved to increase space in the thoracic cavity;

- Tuberculum and capitalum for articulation with the thoracic vertebra/tubacular facet and capitalardem-facet respectivel;. (2marks)

Award marks for; Articulation of tuberculum and capitulum with tubercular facet and capitular demi-face;. (1mark)

Curvature of the rib ; (1mark)
e) part Z – Obturator foramen;. Function

– For passage of blood vessels/and nerves (to the lower limb) ; (2marks)
f) Hinge joint ( 1mark)

NB Award marks for correct procedure, observation and conclusion only.
b) starch - mouth/duodenum; proteins - stomach/ileum; (2mrks)
c) Starch - Amylase/Ptyalin; Protein - Pepsin; (2mrks)
d) starch - marasmas;

proteins - kwashiorkor; (reject wrong spelling) (2mrks)

Total (12mrks)