A teacher set up a demonstration with 5 fermentation flasks filled with the solutions listed below. She added 10 ml of yeast solution to each flask, and
students observed the flasks every 10 minutes for the rest of the class period.
What is the purpose of Flask 1 in this investigation?*

What are the three types of counseling established by marine corps policy?

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

The dense layer of connective tissue that surrounds an entire skeletal muscle is the