Answer:
Those individuals survive which are the best ones and are adapted to their environment. Their survival is due to the possession Of adaptations. 
Explanation: 
Those organisms which are survive in the harsh environment, it is mainly due to some adaptations which helps them to survive in an environmental condition which are not suitable for them and those organisms are removed from the environment which have no adaptations capabilities. 
 
        
             
        
        
        
Answer: c.  Is spontaneous generation a valid explanation for maggots in meats?
Explanation:
 
        
             
        
        
        
Explanation:
Reflexes do slow with age. Physical changes in nerve fibers slow the speed of conduction. And the parts of the brain involved in motor control lose cells over time. 
Researchers found that the brain's response time begins to decline at age 24. The descent is a slow, but nonetheless, steady one.
 
        
             
        
        
        
<u>Behavior genetics</u> is a field that focuses on how variations in behavior and development in living organism, result from the interaction of genetic and physical environmental factors.
<h3>What is genetics?</h3>
Genetics can be defined as the scientific study of genes, heredity and the similarities or variations of traits (inherited characteristics) in living organisms such as humans, animals and plants.
<h3>The field of genetics.</h3>
Basically, genetics comprises various fields and these include the following:
<u>Behavior genetics</u> is a field that focuses on how variations in behavior and development in living organism, result from the interaction of genetic and physical environmental factors.
Read more on genetics here: brainly.com/question/1548948
 
        
             
        
        
        
Answer: They usually run tests too see. For example, that's why they made blood tests. They take you blood from you, and run tests to see if you have a disease.
Explanation: Hope it helps!