What do prokaryotes and eukaryotes have in common? answers:
A) they both have a nuclear membrane
B) they both have a golgi apparatus
C) They both have chloroplasts
D) they both have cell membranes ​

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

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 of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled