Animal Diversity II

roundworms; includes intenstinal parastite Ascaris and Trichinella spiralis; are tripoblastic but have a pseudocoelom; have dorsal and ventral nerve cords

Ascaris CS; has misformed blobs, some are uniformly pink and some contain tiny pink bubbles (phylum Nematoda)

trichinella spiralis; the cyst contains larvae, and they are embeded in muscle; know that when it comes to the individual larva CS it's light pink, and it looks like it has white veins running through it (also, appears to be a slight indent, kind of lima bean shaped)

crayfish (cambarus) and grasshoppers (romalea); have segmented body, hard exoskeleton, jointed appendages; body is covered by cuticle made of protein and chitin

grasshopper

insect leg types

amphioxus (lancelet) WM

amphioxus (lancelet) CS

lancelets: only deuterostomes; subphylum cephalochordates