Humans have microscopic subunits in the kidneys called _____ to filter blood, and spiders have _____ to absorb salts and wastes.. . The choices are the following: nephridia; nephrons. nephrons; Malpighian tubules. setae; nephridia
The right option here is the second choice listed - humans have
miscroscopic subunits in the kidneys called nephrons to filter blood,
and spiders have malpighian tubules to absorb salts and wastes.
