Gymnosperms are a group of seed-producing plants that include conifers, cycads, ginkgo, and gnetophytes. They are known for their "naked seeds," which are not enclosed within an ovary or fruit. Gymnosperms are an important group of plants with unique characteristics and ecological significance.
Characteristics of Gymnosperms
Naked Seeds: Gymnosperms produce seeds that are not enclosed within a fruit or ovary. The seeds are often found on the surface of cone scales or exposed on the surface of reproductive structures.
Cones: Gymnosperms typically produce cones as part of their reproductive structures. These cones can be either male (pollen cones) or female (seed cones).
Needle-like or Scale-like Leaves: Most gymnosperms have needle-like or scale-like leaves, which help reduce water loss and protect them from harsh environmental conditions.
Woody Stem: Gymnosperms are characterized by having a woody stem, which provides structural support and allows them to grow tall.
From Molecules to Organisms: Structures and Processes
Students who demonstrate understanding can:
Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.