Sedimentary Rocks. The Basics. Sedimentary rocks are classified in three main groups: clastic, chemical, and organic. Each group forms in a very unique way by completely different processes. Read on to discover more about these rocks and how they came to be. Clastic Rocks.
sprig. 1. a small spray of a plant with its leaves, flowers, etc. 2. an ornament having the form of such a spray. 3. a shoot, twig, or small branch. 4. a scion; heir. 5. a youth. 6. a headless brad. 7. to mark or decorate with a design of sprigs.
The Pistil. In plants that reproduce by flowering (angiosperms), the pistil is the female reproductive portion (the gynoecium) of the flower.he Pistil. In plants that reproduce by flowering (angiosperms), the pistil is the female reproductive portion (the gynoecium) of the flower.