Most flowers contain both male and female sex cells. The typical flower has four main parts: an outer cup of leaflike sepals, a ring of petals within the sepals, and inside, male reproductive organs surrounding female parts. Male cells develop in structures called stamens and travel enclosed in the hard shell of pollen grains. Female cells, or ovules, develop deep in a flower’s ovary, enclosed in a structure called a pistil. The top of the pistil known as the stigma is long and sticky and a good target for pollen. After it reaches the stigma, a small tube grows out of the pollen grain. The male cells travel down the pollen tube, eventually reaching female ovules. Then fertilization occurs and seeds start to grow.
- Which plant spreads its seeds with the help of children at play?
- Do animals ever carry seeds?
- How do seeds become plants?
- What is a seed?
- Do all plants have flowers?
- What are the patterns of stars called?
- How are a water lily’s leaves different?
- Do all plants have leaves?
- Who is called the “father of botany”?
- How many different types of plants are there?
- How do plants grow?
- How do plants get their nutrients?
- What is plant food from the nursery made of?
- How are plants and animals related?
- How are plants different from animals?
- How fast can a hummingbird fly?
- What is a quasar?
- Why does a peacock spread its tail?
- Can an eagle see a mouse from two miles away?
- Which birds are called birds of prey?
