Determine why dna needs to replicate before a cell divides.

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.

Introducing minvasive species to an ecosystem results in an increase in biodiversity is it true or false

What happens to the amount of waste in the pond as the ecosystem ages?