What percentage of the time required for mitosis is spent in prophase?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

How far away is the nearest black hole from earth?