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menstrual bleeding
New blood vessels are formed at the site
The lines show where a phase changes happens to a substance -
It is from the liquid phase to the solid phase. It is called freezing.
prophase1The first phase of meiosis is Prophase I
prophase1The first phase of meiosis is Prophase I
Metaphase
prophase1The first phase of meiosis is Prophase I
Nothing happens. This is a normal way to obtain a single phase system from a three phase system.
Nuclear Proliferation is the spread of nuclear weapons.
DNA replication happens during s-phase.
Dissolving a substance does not involve a phase change.