What does a horizontal slope for a distance-versus-time graph indicate about an object's motion? A. The object moved faster.
B. The object did not move.
C. The object slowed down.
D. The object reversed direction.

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

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.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?