correct the following statements
- if the sepals of a flower are joined together, its petals are also joined.
- if the petals of a flower are joined together, then the pistil is joined to the petal.
If the sepals of a flower are joined together, then its petals may or may not be joined together.
If the petals of a flower are joined together, then the pistil may or may not be joined to the petal.