a) volume in cm³ = 20 × 42 × 42 = 35280 cm³
b) volume in m³ = 0.2 × 0.42 × 0.42 = 0.03528 m³
c) volume in ml³ = 200 × 420 × 420 = 35280000 ml³
d) volume in litres = 0.02 × 0.042 × 0.042 = 0.00003528 l³
e) Density = Mass / Volume 
Mass = Volume × density 
 = 0.00003528 × 1 
 = 0.00003528 × 1000 
 = 0.03528 grams 
f) Mass in kilo gram = 0.00003528 kg 
 
        
             
        
        
        
<h2>DNA hold an organisms hereditary information.</h2>
Explanation:
- DNA stands for deoxyribonucleic acid.
 - DNA contains genes that are specific sequence of nucleotide that code some proteins or other gene products.
 - Genes are specific to an organism and carry the hereditary information.
 -  Genes are responsible for the trait or characteristic of an organism.
 - DNA is the bearer of hereditary units for most organisms except in case of some Viruses.
 - In viruses RNA holds the hereditary information.
 
 
        
             
        
        
        
Answer:
<u>"A person's behavior reflects unconscious conflicts and emotions that result from early childhood experiences."</u>
Explanation:
<u>Psychoanalytic perspective:</u> In psychology, the term "psychoanalytic perspective" was proposed by Sigmund Freud. The main idea of psychoanalytic perspective is to focus on the significance of an individual's unconscious mind rather than his or her conscious mind. However, it specifies that an individual's behavior is being governed by his or her past experiences or childhood experiences.