Which kind of worm is sometimes used to prevent blood clots? planarian
leech
fluke
hookworm

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?