Identify the major players of meiosis, which are chromosomes from both mom and dad, sister chromatids, centrosomes, centrioles, and microtubules. The lesson goes on to explore each step of meiosis: interphase, prophase I and...

You slough off all your skin cells once every seven years. Thank goodness for mitosis, or we would all be looking pretty strange without skin. The video begins by reviewing the cell cycle, looks at an overview of cells undergoing...

Take a virtual field trip to Plimoth Plantation with four video tours and a slideshow. Videos take viewers aboard the Mayflower, inside a pilgrim village, to a Wampanoag homesite, and the Plimoth Plantation. Slideshow pictures are...

Viewers see how reproductive isolation can lead to speciation as the narrator of a video focusing on speciation explains the steps to reproductive isolation and addresses both allopatric and sympatric speciation. 

In this video Paul Andersen explains why the slowest elementary step in a chemical reaction is the rate-limiting step. This step can be used to determine the overall rate law of the chemical reaction. Take a look at the concept map and...

Paul Andersen explains how an overall chemical reaction is made up of several elementary steps. The stoichiometry of this equation can be predicted but the rate law must be measured. If the elementary steps of the reaction are determined...