When preparing a buret for use in lab the buret must always be cleaned thoroughly prior to being filled with solution what is burette rinsed with?

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

Can someone me with 3 and 4 plz. this is for masteries test.

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these