1. Siliqua can be described as a
A. long narrow many seed developing from a superior bicarpellary ovary
B. dry monocarpellary, superior, one-chambered fruit
C. dry monocarpellary, multilocular fruits developing from a superior ovary
D. Many-seeded, unilocular fruit developing from a superior ovary

2. A rhizome is an underground
A. root
B. shoot
C. food
D. stem

3. A tapeworm has no alimentary canal because
A. it does not feed
B. it sucks blood
C. its body absorbs digested food
D. only liquid food is taken in

4. T he best way of protecting natural resources is by
A. creating game and forest reserves
B. enforcing conservative laws
C. embarking on tree planting
D. prohibiting lumbering in forest reserves

5. Cypsela is
A. dry, dehiscent, monocarpellary, developed from superior ovary
B. dry, dehiscent, multilocular, one chambered fruit
C. dry, indehiscent, monocarpellary, fromm superior ovary
D. dry, indehiscent, bicarpellary developed from inferior ovary, one seeded fruit

6. Which of the following is not a characteristics of enzymes ?
A. they are protein which are activated by co-enzymes
B. they are specific and can act only on specific substrates
C. they are organic catalysts
D. their reactions are irreversible

7. De-oxygenated blood from the head region first enters the heart through the
A. right auricle
B. right ventricle
C. left auricle
D. left ventricle

8. Which of these is the function of pneumatophores in white mangrove plants?
A. anchorage
B. breathing
C. storage
D. excretion

9. One of the basic characteristics feature of viruses is that they grow
A. as colonies
B. as jelly-like materials
C. inside living cells
D. in culture media

10. Steady spread of the unpleasant odor from dead rat is a physical process called
A. cyclosis
B. diffusion
C. osmosis
D. plasmolysis

11. T he organelle in amoeba which performs a similar function with that of the kidney in vertebrate is the
A. nucleus
B. contractile vacoule
C. mitochondrion
D. pseudopodium

12. What is osmosis?
A. a movement of solvent molecule from high concentration of solute to low concentration of solute.
B. process of selective transmission of solvent in preference to solute through semi-permeable membrane
C. movement of solvent from high concentration of solvent to low concentration of solvent through semi-permeable membrane
D. movement of solvent from low concentration of solvent to high concentration of solvent through semi-permeable membrane

13. Blood platelets are important because they
A. produce antitoxins
B. antibodies
C. digest harmful bacteria
D. release thrombin for blood clotting

14. Gymnosperms are commonly called
A. conifers
B. flowerless plant
C. seedless plants
D. cork bearing plant

15. In positive phototropism auxin
A. is produced more in the shaded side than the illuminated side of the shoot
B. as an hormone circulate on all the sides of the plant
C. is produced less in the shaded side than illuminated side of the shoot
D. is produced on the plant near the root so that it can grow longer

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