Which characteristic of water allows for a spider to glide across the top of water due to the strong hydrogen bonds among water molecules

Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Which feature would you expect to find in a population in which sexual selection depends on male competition?