Bile is the substance secreted by the gall bladder to aid the break down of fats into an emulsion. Bile is not an enzyme. It only causes the fat to emulsify. In this experiment, you will use soap to break up the oil. In this experiment, you will observe the emulsification of fat in milk. This is a model of how bile emulsifies fat in your digestive system. The soap is used in place of bile.

Submit your observations.
Give an explanation of what is happening in this experiment.

What do you think would happen if this experiment was conducted with skim milk? Explain your response.

What do you think would happen if this experiment was conducted with cream? Explain your response.

What do you think would happen if this experiment was conducted with water? Explain your response.

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i. e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

What causes temperature extremes in the desert

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass