- 1. Breathing root is an adaptation for survival in the...
A) Arboreal
B) Desert
C) Savanna
D) Mangrove swamp
- 2. Which of the following has the most primitive respiratory system?
A) Fish
B) Mouse
C) Snail
D) Insect
- 3. The group of arthropods with no antenna is the...
A) Arachnida
B) Diplopoda
C) Crustacean
D) Chilopoda
- 4. The dominant phase in the life cycle of a fern is the...
A) Gametophyte
B) Sporophyte
C) Antheridium
D) Prothallus
- 5. In terms of the number of individuals, which of the following taxa is most inclusive?
A) Class
B) Order
C) Family
D) Species
- 6. The response of plants to external stimuli in a non directional manner is known as...
A) Nastic movement
B) Geotropism
C) Phototropism
D) Tactic movement
- 7. The rods in the retina of the eye are examples of...
A) Cells
B) System
C) Tissues
D) Organs
- 8. The blood vessel which carries digested food from the small intestine to the liver is the...
A) Renal vein
B) Hepatic artery
C) Hepatic portal vein
D) Renal artery
- 9. Magnesium is utilised in the formation of...
A) Chlorophyll
B) ATP
C) Glucose
D) Amino acids
- 10. The following are connected with the movement of a reflex action. (1) Central nervous system (2) Muscle (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?
A) 2-1-4-5-3
B) 3-4-1-5-2
C) 3-4-1-2-5
D) 1-2-3-4-5
- 11. Which of the following is cold blooded?
A) Lizard
B) Whale
C) Cat
D) Bird
- 12. Which of these instruments is used to demonstrate the response of roots and shoots to gravity?
A) Klinostat
B) Porometer
C) Potometer
D) Manometer
- 13. One of the major causes of hemophilia is lack of...
A) Plasma
B) Red blood corpuscles
C) White blood corpuscles
D) Fibrinogen
- 14. In man, spermatozoa are never found in the...
A) Urethra
B) Vas deferens
C) Prostate gland
D) Epididymis
- 15. What type of fruit is formed from a single flower having several free carpels?
A) Aggregate fruit
B) Multiple fruit
C) Simple fruit
D) Dehiscent fruit
- 16. The part of mammalian brain responsible for maintaining balances is the...
A) Medulla oblongata
B) Cerebellum
C) Cerebrum
D) Olfactory lobe
- 17. In a biuret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals may be added to the mixture for a positive result?
A) Ammonium hydroxide
B) Hydrogen carbonate
C) Copper sulphate
D) Sodium carbonate
- 18. The characters by which an organism is recognised are termed its...
A) Phenotype
B) Morphology
C) Anatomy
D) Genotype
- 19. In lower plants like mosses, the structure which performs the function of roots of higher plants is called...
A) Rootlets
B) Thalli
C) Rhizoids
D) Hyphae
- 20. In a community, bacteria and fungi are referred to as...
A) Producers
B) Scavengers
C) Consumers
D) Decomposers
- 21. Which of these animals is radially symmetrical?
A) Hydra
B) Cockroach
C) Squid
D) Snail
- 22. The swollen shoot disease of a cocoa tree is caused by a...
A) Bacterium
B) Protozoan
C) Fungus
D) Virus
- 23. Secondary thickening is initiated in a dicotyledonous stem by the...
A) Xylem parenchyma
B) Cambium
C) Endodermis
D) Secondary phloem
- 24. The function of ribosomes in cell is...
A) Starch synthesis
B) Protein synthesis
C) Lipid storage
D) Transport of materials
- 25. An example of monohybrid inheritance is...
A) Hyperthyroidism
B) Cretinism
C) Astigmatism
D) Albinism
- 26. The major function of the bladder in fishes is...
A) Excretion
B) Bouyancy
C) Breathing
D) Swimming
- 27. Which of the following relationships involves only one organism?
A) Commenalism
B) Symbiosis
C) Saprophytism
D) Parasitism
- 28. Coconut and oil palm fruits can be grouped as...
A) Legume
B) Berry
C) Capsule
D) Drupe
- 29. The small masses of nervous tissue in which many neurons have their nuclei are called...
A) Ventral roots
B) Ganglia
C) Synapse
D) Axon
- 30. Coelomb is absent the class of animals termed...
A) Coelenterata
B) Arthropods
C) Reptilia
D) Mollusca
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