How is sunlight used in photosynthesis?
sunlight controls the amount of water in plant cells.
sunlight is a nutrient for plants.
sunlight is converted to chemical energy.
sunlight breaks cell walls to allow energy in and out.

Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.