The phase of mitosis in which the nucleolus disappears is

Group of answer choices

anaphase

interphase

metaphase

prophase

9. wind power creates pollution. water air soil noise

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled