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ZOOLOGY 2025
(Science Pre-Medical Groups)
TIME: 2 Hours
(40 Marks)
SECTION 'A' (Multiple Choice Questions)(08)
NOTE: i) This section consists of 16 part questions and all are to be answered. Each part question carries ½ mark. ii) Do not copy the part questions in your answer book. Write only the answer in full against the proper number of the question and its part.
1 Choose the correct answer for each from the given options:
i) This organ function as an air conditioner:
*Larynx
*Pharynx
*Nasal chamber✓
*Buccal cavity
ii) In sponges specialized cells that form eggs and sperm are called:
*Choanocytes
*Amoebocytes✓
*Pinacocytes
*Phagocytes
iii) The most abundant sugar found in fruits is:
*Maltose
*Galactose
*Fructose✓
*Lactose
iv)This animal has three chambered heart:
*Man
*Crocodile
*Frog✓
*Fish
v) This is not a fish:
*Eel fish
*Cat fish
*Dog fish
*Cuttle fish ✓
vi) The coelom of body cavity is formed due to the splitting of:
*Mesoderm✓
*Ectoderm
*Endoderm
*Mesogloea
vii) Co-enzyme consists of:
*Protein
*Carbohydrate
*Lipid
*Vitamin✓
viii) Respiratory pigments in the muscles are called:
*Myoglobin✓
*Globin
*Haemocyanin
*Haemoglobin
ix) Deoxygenated blood is carried in lungs through this
*Coronary artery
*Pulmonary artery✓
*pulmonary vein
*Renal artery
x) The rasping organ that Mollusca use for feeding is:
*Muscular foot
*Visceral teeth
*Mouth
*Radula✓
xi) This structure has the lowest blood pressure:
*Aorta
*Capillary
*Vena cava✓
*Arteriole
xii) In this disease alveoli in lungs are ruptured:
*T.B
*Emphysema ✓
*Asthma
*Pneumonia
xiii) This serves as physical barrier:
*Macrophage
*Mucous membrane✓
*HCl
*Saliva
xiv) The name of the structure of a sharp denticle is:
*Placoid scales ✓
*Cycloid scales
*Ctenoid scales
*Ganoid scales
xv) The larva of Annelida is called:
*Planula
*Trochophore ✓
*Dipleura
*Amphiblastula
xvi) Example of Cephalochordata is:
*Herdmania
*Amphioxus✓
*Balanoglossus
*Ascidia
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