Which cell organelles function resembles the function of the brain in higher animals

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

What type of plant is good for a bioassay and where can i buy it? i only have a month.