ITEM BANK: Move to Bottom eukaryoteFirst life beginsPhotosynthesis beginsReptiles 3800 MA 3000 MA 2000 MA 1000 MA 570 MA 500 MA 475 MA Land plants 400 MA 360 MA Flowers 300 MA 200 MA 150 MA 130 MA 200 TA

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.