| A | B |
|---|
| frog | detects vibrations in the air with its tympanic membrane; webbed feet |
| platypus | uses its bill to detect movements of other animals |
| shark | uses its nasal passages to detect tiny amounts of blood in sea water |
| sea star | water vascular system with a tube feet on underside of arms; grips surfaces |
| penquin | has streamlined body and wings |
| squid | uses jet propulsion to move; uses mucles to pull in water |
| snake | uses body muscles to move its body |
| snail | contracts muscular foot; foot secretes slippery mucus |
| ostrich | uses long legs and only two toes on each foot |
| monkey | uses long arms to swing from place to place |
| grasshopper | uses muscular hind legs to push off surface |
| bat | only mammal that flies; wings made of skin stretched over long finger bones |
| hawk | long, feathered wings to fly high; has large surface area |
| dragonfly | paired wings enable it to fly a long time and change direction quickly |
| butterfly | has front and hind wings that are linked bya thin layer of cells |
