The right options are;
A.The population of pink katydids will decrease.
B.The population of green katydids will decrease.
What will eventually happen to the population of the katydids is that the population of both the pink and green katydids will decrease. The predators which are the birds that feeds on the katydids (prey) will negatively influence the size of the prey populations by reducing them.
Differentiated cells have a particular role undifferentiated do not have a certain role.
Stem cells are cells that can turn into any other cell; muscle cell, egg cell, skin cell, ect...
The stem cells are used in humans during birth so the different types of cells in the body can form.
Hope this helps! :)