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