Change in the surrounding that causes an organism to react

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.