TPO 45

The lecture and the reading discuss whether bees existed in the Earth as early as 200 million years, or not. Although the passage claims that several theories show the bees may not live 200 million years ago, the speaker refutes this idea through several reasons which I will describe in this reporter.

First and foremost, the reading points out that the earliest bees fossils are discovered 100 million years ago; hence, the bees would not live 200 million years ago. The lecturer, in contrast, rejects this by claiming that actually, trees about 200 million years ago did not produce resin - it is a sticky liquid that bees used for their nests- or some trees produce very rarely. The main structure of the bees nest was resin. Therefore, their nests would not remain from 200 million years, but bees were lived 200 million years ago.

Furthermore, unlike the passage which states that 200 million years ago, flowering plants would not exist, so the bees could not live at that time. However, the professor argues that before existing flowering plants in the Earth, bees have eaten non-flowering plants such as the fern. During evolutionary some flowering plants grown and bees changed their food to the flowering plants; thus, this is a new relationship between flowering plants and bees.

Finally, although the reading passage says that some fossils are discovered in Arizona and they are as the same as bee nests. But they do not have chambers made by bees. The speaker disagrees by mentioning that the lack of chambers do not mean that the fossils were not made by bees. She adds that bees were a product of some chemical component for resistant water. When these fossils are chemically analysed, they show that they have a chemical component that produced by bees. As a result, these fossils belong to the bees.