A flagellum is a long, thin, whip-like structure that is found on some organisms, including some unicellular algae. Flagella help propel the organism through water. The flora is all the plants that live in an area. Flowers usually have carpels , petals , sepals , and stamens. Some plants have both male and female flowers, while other have males on one plant and females on another.
Complete flowers have a stamen , a pistil , petals , and sepals .
Incomplete flowers lack one of these parts. Their flowers are used in reproduction. Angiosperms evolved about 140 million years ago , during the late Jurassic period , and were eaten by dinosaurs. For example, the green iguana is a folivore. These are eaten by other carnivores.