| A | B |
|---|
| Insects | six legs |
| Arachnids | eight legs |
| Crustaceans | ten legs |
| centipede | "one-hundred footed" |
| Centipedes have how many legs per section? | two (but the last 2 sections have no legs) |
| South Amerian giant centipede | over ten inches long and can kill animals such as lizards and mice |
| millipede | "one-thousand-footed" |
| Legs on a millipede's body | four legs per section except for the 1st three and the last. |
| carnivore | meat eater |
| herbivore | plant eater |
| Millipede's defense | stink glands or curling into a ball |
| stink glands | in two rows along the sides of a millipedes body and release a poisonous substance capable of harming or killing |
| castings | soil that has passed through an earthworm's body |
| setae | give the earthworm the ability tofasten itself to the soil as it crawls |
| parasitic worms | leeches, tapeworms, and roundworms |
| leeches | fstens to the skin of its host and feeds on the host's blood |
| tapeworm | grows inside the intestines of a host, robbing it of important nutrients |
| roundworms | can live in the lymph nodes, intestines, or even muscles of their hosts taking their nourishment from the host's blood or partially digested food |
| Mollusks | clams, oysters, slugs, snails, squids, and octopus |
| Most mollusks make themselves.... | shells |
| mantle | produces shell in liquid tissue |
| gastropod | "stomach foot" |
| snail | farmer's enemy because it eats young plants |
| univalves | one-shelled mollusks |
| does not have a protective shell | slug |
| bivalves | mollusks having two matching, fan-shaped shells joined by hinges |
| cephalopod | "head foot" |
| jet propulsion | releasing water, pushing the mollusk forward in the same way air escaping from a balloon pushes it forward |
| octopus | eight tentacles, each with two rows of muscles that act like suction cups |
| squid and cuttlefish | ten tentacles with suction cups and internal shells |
| nautilus | has a beautifully designed external shell that protects its body;it has as many as 94 tentacles with no suction cups |
