Since its negative, it means it is growing away from the light source. It's a rather odd question because plants usually grow towards the light source.
Theories are a collection of scientific data that is generally accepted and reproducible. Theories are a result from several repeated experiments, but theories are not based on a single hypothesis. Several hypotheses are tested and appraised to become a well accepted theory. Theories may also be revised over time and can predict what may happen in the future. On the other hand, theories are not proven facts.
I think the answer to your question is Magnetic.
A pedigree<span> is a diagram showing genetic relationships between members of a family. It is used to analyze patterns of inheritance for specific genetic traits.
i'm not sure how to help you with the other part of the question</span>
A theory that states that only the organism with traits that are useful to the environment survive. For example, short-neck giraffes would’ve died out years ago as they can’t reach the trees nor eat grass on the ground.