I'll give this illustration drawn by a scientist is based on observations of a cell under a microscope. which statement best describes the anaphase of mitosis? examining cells
a. in this stage, the chromosomes begin to spread out across the center of the cell.
b. this stage makes the cell's chromosomes more compact before the nucleus breaks down.
c. this stage is where the spindle fibers pull away from the cell's center.
d. in this stage, the unneeded spindle begins to break down.

What does the process of natural selection involve

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

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?