2. Which of the following would best represent the most complete organization of life from simplest to most complex?

The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.