Marie and Joan are the same height, but Marie weighs 25 pounds more than Joan. When they go hiking in cold weather, Joan needs two more layers of clothing than Marie to stay warm. Which of the following explains why?Marie and Joan are the same height, but Marie weighs 25 pounds more than Joan. When they go hiking in cold weather, Joan needs two more layers of clothing than Marie to stay warm. Which of the following explains why?Marie has more dermal blood vessels, which constrict to increase blood flow to the core. Marie has more subcutaneous fat, which is metabolized to provide warmth. Marie has more subcutaneous fat, which insulates the body’s core. Marie has a thicker epidermal layer, which insulates her body’s core more efficiently.

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.