You are to relate 4 units to each other. How did one unit concept reappear in another unit 1. Water

2. Macromolecules
-Lipids
-Protein
-Carbohydrates
-Nucleic Acids
3.Cells

4. Organelles ( an overview organelle structure and function)
- Including the cell membrane structure and function
- Membrane of Various organelles

5. Photosynthesis and Cellular Respiration

6. The Cell Cycle and Mitosis

not sure if this is what you'r looking for eubacteria and archaebacteria

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.