Before mitosis begins, a cell makes a copy of all the dna in each chromosome. what would go wrong if a cell did not make a second copy of all of its dna before the cell divided into two daughter cells

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.

What is the term for a water wave that is created by an underwater earthquake?

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei