Why Do I Need Electrolytes? Have you ever wondered why you get tired much faster on warmer days than on cold ones or why you become dizzy and weak when you are dehydrated? As you are learning, your body is more than a collection of organs. In addition to understanding […]

1. You started life as a single cell, Remember Virchow’s statement that all cells come from pre-existing cells. Where did your original Cell come from? 2. Where did your parent’s cells come from? 3. Your body is now composed of trillions of cells. Where did the rest of your cells […]

Eukaryotic cells are complex in organization and structure, especially when you consider their small size. Consider the organelle contents of the typical eukaryotic cell. Select two organelles and compare them relative to structure and function. Describe what would be the specific probable effects on the cell if each of these […]

Question 1How is artificial selection different from natural selection?Artificial selection is the only kind of selection that can occur in a laboratory.Artificial selection is selection by humans rather than the environment.Artificial selection changes traits but not genes.Artificial selection can occur over one or two generations as opposed to many generations. […]