WAEC 2022 BIOLOGY

 BIOLOGY OBJ:

1-10: DCADABCADB

11-20: ABDBABDAAA

21-30: ACBABBCBCB

31-40: ABDDDBDACA

41-50: ACCADCDBBA

(1)

(2)

(5a)

TABULATE

=EARTHWORM=

(i) Straight

(ii) Simple

(iii) It feeds on fluid 

=COCKROACH=

(i) Curve 

(ii) More enveloped 

(iii) It feeds on both fluid and solid 

(5aii)

(i)Possession of crop

(ii)Possession of gizzard

(iii)Possession of pharynx

(5b)

(i) Water cycle

(ii) - Plant contribute through transpiration 

- Animals contribute through respiration

- Animals contribute through perspiration

(iii)

- X: Condensation

- Y: Transpiration

- Z: Evaporation

(5c)

TABULATE 

=ORGAN=

(i) Kidney

(ii) Skin

=DISEASES=

(i) Kidney stones, diuresis and oedema

(ii) Eczema, acne, vitiligo

(5di)

This is a process whereby heterotrophic organisms utilize the remains of one living tissue as a source of nutrition

(5dii)

(i) Fungi

(ii) Bacteria

(5diii)

Temperature

(5div)

Carbon cycle

(5e)

They exhibit heterotrophic nutrition known as carnivorous or insectivorous feeding. They have attractive colours that attracts insects to them. Once the insect lands in their spine, they are killed and digested

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