Answer:
Explanation:
Placoderms were the first jawed fish; their jaws likely evolved from the first of their gill arches. in spanish
placodermos
Answer:Almost 2/3 of our body store of iron is found in the hemoglobin in our blood
Explanation:
67 million years ago in the form of phyollths (small sllica flecks in grass that make it difficult to digest)
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells. In bacteria, which lack a cell nucleus, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication.