Bioartist suzanne anker experiments with creating artificial environments (such as the conditions suitable for life in outer space) in which she grows plants. in astroculture (shelf life), 2009, she found that the plants' leaves turned:

c. movement because i took the test and it lets me review my answers

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.