Populations evolve and individual organisms do not. Evolution occurs through natural selection and survival of the fittest as populations evolve traits that better suit their environment.
Do you have a better picture?
Yes, DNA synthesis is a part of creating DNA.
The importance of food chain is to keep its environment going and producing each community of each factor
1. MUSCLE TISSUE : allows the heart to contract
2. CONNECTIVE TISSUE : insulates the body
3. EPITHELIAL TISSUE : forms the outer, most protective layer of the body
4. NERVOUS TISSUE : allows the brain to respond to stimuli. Others include sensory input, integration, control of muscles and gland, homeostasis, & mental activity.
(I answered another question just like this two minutes ago, not sure if it was the same person :)