Stem cells can divide indefinitely and can produce different types of cells, as shown in the model here. A student wants to revise the model to accurately depict how stem cell division and differentiation allows for specialized cells to develop while maintaining the ability for the stem cell to give rise to new cells. What revision to the model best depicts stem cell division and differentiation?

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.