I need help with this. I will give brainliest. Melanie gathers water from different areas of the pond by her school. She puts growing solution into 4 different shallow dishes. She puts one drop of water from different areas of the pond into three of the dishes. She leaves one dish with only the growing solution in it and does not add pond water. She covers all the dishes and leaves them on the counter for several days to compare the algae growth in each dish. Why does she have a dish with just the growing solution in it?

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.