Representative organism Type of symmetry (Radial, Bilateral, or None) Type of skeleton (ENdoskeleton, EXoskeleton, or None) Type of appendages (Jointed, Not Jointed, or Absent) Segmentation (Present or Absent) Sponges
Cnidarians
Roundworms
Annelids
Mollusks
Arthropods
Echinoderms
Vertebrates

Sponge; Radial Symmetry; Endoskeleton; Absent Appendages; Absent Segmentation

Cnidarians; Radial Symmetry; No Skeleton; Non-Jointed Appendages; Absent Segmentation

Roundworms; Radial Symmetry; No skeleton; Absent Appendages; Absent Segmentation

Annelids; Radial Symmetry; No skeleton; Absent Appendages; Present Segmentation

Mollusks; Bilateral Symmetry; Exoskeleton; Non-Jointed Appendages; Absent Segmentation

Arthropods; Bilateral Symmetry; Exoskeleton; Jointed Appendages; Present Segmentation

Echinoderms; Bilateral Symmetry; Endoskeleton; Non-Jointed Appendages; Absent Segmentation

Vertebrates; Bilateral Symmetry; Endoskeleton; Jointed Appendages; Absent Segmentation

the man is bald so he has no hair to get wet

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.