Which of the following is true of archaebacteria? they are multicellular. they are eukaryotic. they have chlorophyll. they tend to live in extreme environments.

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

20 the main source of energy for our planet comes from the

Happen when the wrong amino acid is placed during protein sythesis a gene alterations b gene rearrangements c insertions d deletions