Answer: Gray whales are the common ancestor of the Blue and Humpback whales.
Ancestors of Blue whale include: Gray?
 
        
                    
             
        
        
        
Answer:
hi-hi,
i believe the answer is that you'll create friction and thermal heat
Explanation:
https://www.khanacademy.org/science/physics/work-and-energy/work-and-energy-tutorial/v/work-energy-problem-with-friction 
this is the video i watched to help answer your question
good luck :)
i hope this helps
**please let me know if this was not what you were looking for/incorrect or both**
have a nice day!
 
        
             
        
        
        
Genetic change in the reproductive cells of the body (ovule or sperm) that is incorporated into the DNA of each cell in the body of the descendants. Hereditary mutations are transmitted from parents to children. It is also called germline mutation.
        
             
        
        
        
1. One reason is extinctions happen because of some kind of change in the environment where a life form lives. While some species can adapt to the changes, others die, and if enough die, the species becomes extinct. These are some of the biggest factors in the extinctions of particular species. 2. Contaminants in the environment, such as pesticides.