What function does this structure have?

Which would be the most useful source of evidence to support mcneill's contention?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

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.