What is 0.55 hectometers expressed in decimeters? 550 dm
b. 5.5 dm
c. 55 dm
d. 0.00055 dm

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.