Quiz
Choose the best answer.
1. Plants are the primary producers in any ecosystem.
2. Short day-long night plants require longer periods of darkness.
3. Photoperiodism refers to the length of light that a plant will react to.
4. Plants are able to "know" whether it is daytime or night time through the phytochrome.
5. Photoperiodism accounts for plants to thrive on any place on Earth.