- 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) Insect
B) Mouse
C) Snail
D) Fish
- 3. The group of arthropods with no antenna is the...
A) Diplopoda
B) Crustacean
C) Arachnida
D) Chilopoda
- 4. The dominant phase in the life cycle of a fern is the...
A) Sporophyte
B) Prothallus
C) Antheridium
D) Gametophyte
- 5. In terms of the number of individuals, which of the following taxa is most inclusive?
A) Species
B) Order
C) Class
D) Family
- 6. The response of plants to external stimuli in a non directional manner is known as...
A) Tactic movement
B) Phototropism
C) Geotropism
D) Nastic movement
- 7. The rods in the retina of the eye are examples of...
A) System
B) Cells
C) Tissues
D) Organs
- 8. The blood vessel which carries digested food from the small intestine to the liver is the...
A) Hepatic artery
B) Renal artery
C) Hepatic portal vein
D) Renal vein
- 9. Magnesium is utilised in the formation of...
A) Amino acids
B) ATP
C) Chlorophyll
D) Glucose
- 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) 3-4-1-5-2
B) 1-2-3-4-5
C) 2-1-4-5-3
D) 3-4-1-2-5
- 11. Which of the following is cold blooded?
A) Whale
B) Cat
C) Bird
D) Lizard
- 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) Red blood corpuscles
B) White blood corpuscles
C) Fibrinogen
D) Plasma
- 14. In man, spermatozoa are never found in the...
A) Urethra
B) Prostate gland
C) Vas deferens
D) Epididymis
- 15. What type of fruit is formed from a single flower having several free carpels?
A) Multiple fruit
B) Aggregate fruit
C) Dehiscent fruit
D) Simple fruit
- 16. The part of mammalian brain responsible for maintaining balances is the...
A) Medulla oblongata
B) Olfactory lobe
C) Cerebrum
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) Sodium carbonate
B) Copper sulphate
C) Ammonium hydroxide
D) Hydrogen 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) Rhizoids
B) Hyphae
C) Thalli
D) Rootlets
- 20. In a community, bacteria and fungi are referred to as...
A) Producers
B) Scavengers
C) Decomposers
D) Consumers
- 21. Which of these animals is radially symmetrical?
A) Squid
B) Snail
C) Cockroach
D) Hydra
- 22. The swollen shoot disease of a cocoa tree is caused by a...
A) Fungus
B) Bacterium
C) Protozoan
D) Virus
- 23. Secondary thickening is initiated in a dicotyledonous stem by the...
A) Xylem parenchyma
B) Secondary phloem
C) Endodermis
D) Cambium
- 24. The function of ribosomes in cell is...
A) Protein synthesis
B) Transport of materials
C) Lipid storage
D) Starch synthesis
- 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) Breathing
C) Swimming
D) Bouyancy
- 27. Which of the following relationships involves only one organism?
A) Symbiosis
B) Saprophytism
C) Commenalism
D) Parasitism
- 28. Coconut and oil palm fruits can be grouped as...
A) Berry
B) Legume
C) Drupe
D) Capsule
- 29. The small masses of nervous tissue in which many neurons have their nuclei are called...
A) Ventral roots
B) Axon
C) Synapse
D) Ganglia
- 30. Coelomb is absent the class of animals termed...
A) Mollusca
B) Coelenterata
C) Reptilia
D) Arthropods
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