Answer:
"Survival of the fittest" is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success.
Explanation:
 
        
             
        
        
        
Answer:
the faster the car goes the more stopping distance is needed
Explanation:
 
        
             
        
        
        
They are constantly contributing to the scientific community and
improving it. There are always new things to be discovered and they are
constantly doing just that?
        
                    
             
        
        
        
Answer:
0.1
Explanation:
To calculate this, scientists use a formula called the biodiversity index in order to describe how much are the species of a given area diverse. It is calculated by taking the number of species in the area and divided by the total number of individuals in that area. This gives us the biodiversity index. 
In this example, there are 15 species in an area and we divide that by 150 organisms to get a 0.1 biodiversity index.