In contrast to the stratified squamous epithelium of the skin, the intestinal barrier is composed of a single layer of columnar epithelial cells However, this single layer of intestinal epithelial cells is made of diverse cell types with absorptive, secretory, and immune function
They drink water and then get rid of the waste
Answer: passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration
Explanation:
I believe the correct answer from the choices listed above is the second option. Chemiosmosis is the process of using a hydrogen concentration and electrochemical gradient to move hydrogen ions through a specialized protein channel, thus driving a chemical process. Therefore, it is a facilitated diffusion which <span>uses regular diffusion as the driving force (i.e. the molecule moves from high to low concentration), but unlike regular diffusion does so only through specialized channels.</span>
Answer: Option A.
<u>Explanation:</u>
A graphic organizer is also known as a knowledge map, a concept map, a story map, an advance organizer and cognitive organizer. It is a pedagogical tool that makes use of visual symbols to express knowledge and concept through relationship between them.
In the graphic organizer shown in the question, the graphic organizer of option A best compares natural selection (which are driven by the environmental factors) and the artificial selection (which are driven by the human factors).
