The body proportions of neandertals may have arisen as adaptations to a environment.

The body proportions of neanderthals may have arisen as adaptations to a HARSH AND CONTINUOUSLY CHANGING environment. Neanderthals that have evolved through millions of years have developed skills and techniques in order for them to eat, live in good conditions, and protect themselves from dangers of the environment. As such, their physical bodies have also evolved through the activities that they do on a regular basis.

Active transport. now that i answered your question i wish you can me

The arrangements of lipids in the membrane makes the cell semi permeable .