Question

sort the words according to the meanings of their shared roots.
subaquatic
antitoxin
tripod
bipod
octopod
endotoxin
semiaquatic
intoxicate
foot
poison
water

Explanation:

• For "foot": The root "pod" means "foot". "Tripod" (tri - three, pod - foot), "bipod" (bi - two, pod - foot), "octopod" (octo - eight, pod - foot) all relate to foot.
• For "poison": The root "tox" means "poison". "Antitoxin" (anti - against, tox - poison), "endotoxin" (endo - within, tox - poison), "intoxicate" (in - in, tox - poison) relate to poison.
• For "water": The root "aqu" means "water". "Subaquatic" (sub - under, aqu - water), "semiaquatic" (semi - half, aqu - water) relate to water.

Answer:

• foot: tripod, bipod, octopod
• poison: antitoxin, endotoxin, intoxicate
• water: subaquatic, semiaquatic