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