2024 WAEC BIOLOGY: 2024 WAEC BIOLOGY PRACTICAL Midnight Questions and Answers (5150)

(1a)
A: Annual crop
C: Annual crop

(1b)
TABULATE

SPECIMEN A:
(i) Presence of hole
(ii) Brownish in colour
(iii) It is dry
(iv) It is hard when touched

SPECIMEN C:
(i) Absence of hole
(ii) Whitish in colour
(iii) It is wet
(iv) It is soft when touched

(1c)
(PICK ANY THREE)
(i) Proper storage of produce
(ii) Practising of crop rotation
(iii) Spraying with insecticides
(iv) Growing of resistance varieties
(v) Proper drying after harvesting


(1d)
A: Epigeal
B: Hypogeal

(1ei)


(1eii)
TABULATE:

TEST: C + iodine solution

OBSERVATION: A blue-black colour is observed

INFERENCE: Starch is present

(2ai)
D - Terrestrial (Termitarium)
E - Arboreal (Beehive)

(2aii)
TABULATE:

Specimen D:
(i) Absence of stinger
(ii) Strong mandible for biting.
(iii) Absence of eyes
(iv) Absence of ocelli
(v) Absence of wings.

Specimen E
(i) Presence of stringer
(ii) Mandible is moderate.
(iii) Presence of eyes
(iv) Presence of ocelli
(v) Presence of wings.

(2aiii)
Both specimen D and E are social insects

(2bi)
(PICK ANY TWO)
(i) It produces honey which serves as food
(ii) Honey being a product of bee, serves a great medicinal purpose
(iii) It helps to pollinate flower.

(2ciii)
(i) Incisors - Grasping and pulling food into the mouth.
(ii) Premolars- Chewing food
(iii) Molar - Grinding up food

(2d)
Heterotrophic (Herbivorous)

(2e)
(i) Presence of incisor for cutting leaves.
(ii) Presence of diastema which afford the chewing space.
(iii) Presence of sharp enamel ridges grind food as molar slide over each other.

(2e)
(i) Calcium
(iii) 'copied from e x a m p l a z a . c o m free' Phosphorus

(2ai)

D: Termitarium

F: Give

(2aii)

TABULATE

=SPECIMEN D=

(i) Absence of eye

(ii) Absence of ocelli

(iii) Absence of pollen

(iv) Absence of stinger

=SPECIMEN F=

(i) Presence of eye

(ii) Presence of ocelli

(iii) Presence of pollen

(iv) Presence of stinger

(2aiii)

Social insect

(2b)

(i) Provision of honey which serves as food

(ii) It serves as an agent of pollination

(2c)

(i) Incisors: For cutting of grass

(ii) Premolar: For chewing

(iii) Molar: For grinding

(2di)

Heterotrops/Herbivorous

(2dii)

(i) Presence of diastema for food propelling

(ii) Presence of incisors for cutting of grass

(iii) Presence of molar and premolar for chewing and grinding grasses

(2e)

(i) Calcium

(ii) Phosphorous