I have a bad habit of chewing on my finger nails
It is a perfect example of a natural selection.
(I'm not sure if this is the exact answer that you are looking for.)
Answer:
organic fertilizer can cause less harm to the plant & environment as it isn't toxic (completely natural) as opposing to fertilizers, which is filled with toxic chemicals.
theories are ideas of why something happens. They are not considered "true" unless backed up with a series of scientific studies. Then it would be more of a law.
According to modern classification I will say that Jake is correct. With the use of tracing back and DNA technology then we can say that this is the digital way which is used nowadays to classify animals.
Sophie says through her observation that the characteristics of the animal classification used.
