TEST ON FUNDAMENTAL CONCEPTS 451 



public institution. In Massachusetts, of 3230 inmates of such 

 institutions, 66 per cent were alcoholics. 



Practical Exercise 10. Sum up the reasons why alcohol harms a person 

 through its effects on the nervous system. 



Self-Testing Exercise 



Alcohol is a (1). There seems to be a direct correlation 



between drinking and (2), and between drinking and 



(3). Some experiments show that drinkers are (4) 



(5) than non-drinkers. The (6) of (7) is 



hard to overcome. Alcohol has harmful effects upon the (8) 



system. 



Review Summary 



Check your knowledge of the unit by: (1) rechecking on the survey ques- 

 tions ; (2) performing the assigned exercises ; (3) checking with your teacher 

 the scores of the various tests and doing over all missed parts ; (4) making an 

 outline of the unit for your workbook. 



Test on Fundamental Concepts 



In a vertical column under the heading CORRECT write numbers of all statements you be- 

 lieve are true. In another column under INCORRECT write numbers of untrue statements. 

 Your grade = right answers X 2\. 



I. Sense organs (1) are never located at the surface of the body; 



(2) usually consist of cells which are capable of receiving stimuli; 



(3) in lower animals are usually located in hairs or other structures 

 at the outside of the body ; (4) put animals in touch with their sur- 

 roundings ; (5) are usually more numerous at the anterior end of an 

 animal. 



II. A reflex (6) is a structure formed on the outside of animals; 



(7) is seen in plants when the leaves close up in response to heat or light ; 



(8) is the result of a stimulus and results in movement ; (9) is seen 

 when we involuntarily withdraw our finger from a hot object; (10) is 

 the result of a nerve impulse traveling to a nerve center, where it is 

 translated into movement by means of an outgoing nerve impulse. 



III. Stimuli (11) travel by means of nerves; (12) are received 

 through sense organs; (13) often are felt as pain, pressure, heat; 

 (14) are of no value to man; (15) are the means by which we are 

 aware of our surroundings. 



