The fossils of human ancestors show an increase in complexity as we move forward in the geological time scale. what does this complexity indicate?

Acommon kind of mechanical weathering is called

What is a group of organisms that are closely related and share similar characteristics

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.