Formation of the transcription initiation complex begins when general transcription factors bind to a segment of dna called the .

There are six elements that make up most of the human body. which of the following is not one of these six elements?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.