Answer:
homologous, high levels of, natural selection
 
        
                    
             
        
        
        
Answer:
The correct answer to the question is Biofuel
Explanation:
Biofuel can be used as an alternative energy technology source to power a car.
The importance of using biofuel is that it causes less air pollution than fossil fuels, and  it has less effect on the global warming. Most importantly, it is produced from agricultural sources.
The biofuels that can be used are butanol,ethanol and biodiesel etc.
Wind, geothermal and hydropower can not be directly used to provide power to the car.
Hence, the correct answer to the question is that biofuel which can be used as an alternating technology to provide power to car.
 
        
             
        
        
        
The stem 
1.is responsible for the transport of food and water from the roots and leaves to the other parts of the plant
2. The stem holds the plant upright or erect
3. It also stores the nutrients 
4. It also produces new living tissues
Hope this helps!!!
        
             
        
        
        
Answer:
What Keene High school students are you reading about? And what scientist are you talking about? If you had given more information I would have helped. Anyways, just look at what it says in the book that the scientist did, and what the Keene high school students did. And see what they both have in common.