Which observation proves that a cell is a eukaryote
a. the cell uses ribosomes to create protein
b. the cell contains dna
c. the cell contains nucleus
d. the cell has a cell membrane?

Which of the following conclusions can be drawn

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

Which describes the changes in the earths motion?