Answer:
Your answer is B). Massive stars undergo a supernova at the red giant phase.
Answer:
it is hard because u couldn't understand wt ur teacher's teaches u
Answer:
The nucleus is an organelle found in eukaryotic cells.
Explanation:
She should make observations next.
If she doesnt make observations, it would be difficult to form a hypothesis and design an experiment, the result will more likely to be inaccurate too.
Cell is dividing the cell spend in the two main phrases
