To demonstrate the action of salivary amylase on starch Take 1 mL starch solution (1%) in two test tubes (A and B).

Add 1 mL saliva to test tube A and leave both test tubes undisturbed

for 20-30 minutes.

Now add a few drops of dilute iodine solution to the test tubes.

*THE QUESTION*

Akhil boiled the contents in the test tube A for half an hour before testing it with iodine. Will he get the result? Why?

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.