Which of the following statements is supported by the principles of cell theory? I. Certain cells can form on their own, without requiring a parent cell.
II. Genetic information is passed from a parent cell to a daughter cell.
III. The basic units of all living things are organelles.

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

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

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?