It's 4. just took it, that's 1000% the right answer. that other person stinks for that non-answer, sorry. hope this helps. 
ps. if it's not obvious, you figure it out by taking the hypotenuse (120) and putting it over the height (30). 120/30 is pretty simple division.
        
             
        
        
        
the male reproductive system consists of external organs. while the female reproductive system consists of internal organs. 
 
        
                    
             
        
        
        
Answer:
The correct answer is "high heritability".
Explanation:
Concordance, is a term used in genetics to describe the probability that one of the twins have certain trait if his brother certainly has it. A high percentage of concordance, such as 75%, is translated into high heritability since monozygotic twins have identical genomic sequences. Additional information to determine heritability will be to study the exposure to similar environmental conditions, since environment can also affect the presence of certain traits.
 
        
             
        
        
        
Answer:
There are 5 steps of the scientific method
1. Make a question
2. Do some research for that question
3. Make a hypothesis ( guess what might happen during the experiment)
4. Test and Collect Data
5. Conclusion ( write what happened during the experiment and what you learned)