1. Thalloid body plan: This is the simplest plant body plan, consisting of a flattened, leaf-like structure. Thallus plants are typically small, non-vascular plants, such as algae and liverworts.
2. Cormophytes: These are plants with true stems, roots, and leaves. They are vascular plants, meaning that they have specialized tissues for transporting water and nutrients throughout the plant body. Cormophytes include mosses, ferns, gymnosperms, and angiosperms.
Major Body Plans of Animals
1. Radial symmetry: Animals with radial symmetry have a body plan that is arranged around a central axis. They typically have a circular or cylindrical shape, and their body parts are arranged in a repeating pattern around the central axis. Examples of animals with radial symmetry include jellyfish, sea stars, and corals.
2. Bilateral symmetry: Animals with bilateral symmetry have a body plan that is divided into two mirror-image halves by a central plane. They typically have a head, a tail, and a dorsal (back) and ventral (belly) side. Examples of animals with bilateral symmetry include humans, insects, and fish.
In addition to these two major body plans, there are also a number of other less common body plans in the animal kingdom. These include:
* Asymmetry: Animals with asymmetrical bodies do not have a definite body plan. They may be irregularly shaped, or they may have a body plan that is not bilaterally symmetrical. Examples of animals with asymmetrical bodies include sponges and sea urchins.
* Metamerism: Animals with metameric bodies have a body plan that is made up of a series of repeating segments. Each segment is similar in structure to the other segments, and they are all arranged along the central axis of the body. Examples of animals with metameric bodies include worms, insects, and millipedes.