The main function of the canine greeting display is to
a. establish ownership of the territory on which the dogs meet.
b. determine the signals to be used during the confrontation.
c. minimize conflict between greeting dogs.
d. release excessive energy.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Select the correct answer. in the image, if the washcloth represents consumed food, which organ of the digestive system correctly represents the action performed by the hands? hands squeezing water from a washcloth a. esophagus b. large intestine c. liver d. mouth

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle