Leeches are soft, squishy animals with long, tube-like bodies that are made of many repeating segments. They contain a heart that pumps blood through their bodies and survive by attaching to other organisms and sucking their blood. What animal phylum do leeches belong in?

arthropods
echinoderms
chordates
annelids

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

protocol for imps extraction focusing on membrane protein extraction, solubilisation, and purification.