Two to three days after seeding cells in new media, you will notice that the ph of cell culture medium, as monitored by phenol red, will change over time unless it is replaced. what causes the media to change color assuming there is no microbial contaminations, that the cells are still healthy and kept in a functioning co2 incubator such as the ones we have in the lab?

Which orbitals form a pi bond? a.the s orbital and three p orbitals b.the s orbital and two p orbitals c.overlapping p orbitals d.overlapping hybrid orbitals

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

When a scientific theory has been tested and proved by the scientific community, it becomes a law