If a sample of rock is determined to be approximately 28,000 years old, apporximately what percent of the sample is still carbon-14?

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

What is the starting point in replication called

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.