GENERAL EDUCATION " GENERAL SCIENCE " (TEST DRILLS)

1. The tough exoskeleton that serves for protection among the trilobites and crayfishes are ____________.

A. Chitin

B. Pulp     

C. Calcium carbonate

D. Spicules

 

2. Which part of the brain acts as the center of our emotions?

A. Medulla        

B. Cerebrum      

C. Cerebellum

D. Thalamus

 

3. In the flowering plants, nectar and brightly colored petals attract insects. What process is most directly aided by these adaptations?

A. Pollination  

B. Fertilization  

C. Differentiation

D. Germination

 

4. Smooth muscles are generally found:

A. At the joint   

B. In the digestive system 

C. In the heart

D. Attached to the skeleton

 

5. What do you call the small, hair-like structures which line the inside wall of the small intestine and which greatly assist in the speeding up of food absorption?

A. Cilia     

B. Villi      

C. Alveoli

D. Duodena

 

6.  In which part of the rice plant is sugar manufactured?

A. Stem    

B. Roots   

C. Leaves

D. All of the above

 

7. Some bacteria are classified as saprophytes because they are organisms which:

A. Contain vascular bundles

B. Feed on other living things

C. Feed on dead organic matter

D. Manufacture food for photosynthesis

 

8. Studies show that there are parts of the body that have lost their usefulness and which may later disappear. What are these organs called?

A. Extinct 

B. Vestigial        

C. Residual

D. Fossilized

 

9. Who proposed the theory of evolution that is based on natural selection?

A. Charles Darwin   

B. Watson 

C. Gregor Mendel

D. Lamarck

 

10. Which organism could be classified as a producer in a community?

A. Plant   

B. Animal 

C. Carnivore

D. Herbivore

 

11. Birds shed off feathers at least once a year through a process called ________.         

A. Migrating     

B. Skinning       

C. Molting

D. Furrowing

 

12. Of the following organisms, which are included under Kingdom Plantae?

A. Fungi   

B. Prokaryotes  

C. Magnolidae

D. Protozoa

 

13. Substances which cause chemical changes in foods are called?

A. Vitamins       

B. Red cells       

C. Enzymes

D. Hormones

 

14.    Which of the following pairs demonstrates symbiosis?

A. Bee and flower     

B. Monkey and banana        

C. Chick and corn plant

D. Termites and wood

 

15. Some genetic disorders are caused by the damage to DNA, which cannot be repaired. This shows _________.

A. Mutation     

B. Pathology     

C. Embryology

D. Speciation

 

16. The appendix, though a part of the large intestine, has no digestive function. It is therefore called ___________.

A. A Heterogeneous organ  

B. A vestigial structure      

C. An addendum organ

D. An analogous structure

 

17. Animals which live on land but return to the water to breed

A. Reptiles         

B. Mammals      

C. Amphibians

D. Crustaceans

 

18. Which among the following is the only method of contraception that has 100% success rate?

A. Injectable contraceptives

B. Withdrawal method        

C. Abstinence

D. Daily oral contraceptive pills

 

19. Polysaccharides, triglycerides, polypeptides, and nucleic acids are classified as

A. Acids and bases     

B. Macromolecules    

C. Compounds

D. Mixtures

 

20. Dengue is an infectious disease transmitted by an organism classified under which phylum?

A. Arthropoda 

B. Echinodermata       

C. Mollusca

D. Cnidaria


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