Biology - - 30 why is it rare to find fossils of animals from before the cambrian period? what about these animals makes it rare for them to form fossils? (answer both questions as soon as possible ! )

If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle fibers, at which stage will mitosis be arrested?

What best explains the inability for life to exist in earth early atmosphere

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.