Freshman science?

Question

Please explain the following concepts... I really need to be able to understand these.

a)Explain how energy is transferred or transformed within and among physical systems.

b)Explain how natural selection and adaptation leads to organisms well-suited for survival in particular environments (e.g. speciation, biological diversity).

c)Describe the degree of evolutionary relationship between organisms based on biochemical, genetic, anatomical, and/or fossil record similarities and/or differences.

Answer 1

Think of gasoline which has chemical energy, but when put into an engine it burns and creates mechanical energy which can run a car and push it up a hill which creates kinetic energy when it comes back down (even without the engine on) and that energy charges the battery creating electrical energy which can then be used in the lights to create light energy which can be used by plants to make chemical energy (although thats wouldn't do that much by the end.

Organisms with desired traits/mutations will have a better chance of surviving and producing viable offspring which will then do the same and further develop over generations. Over these generations some of the traits will become more pronounced and others will disappear.