1 Mechanical digestion is evident, where one can see the breaking down of large food particles into smaller ones after being ground by the teeth. 2  While the chemical changes that take place happen within the body and are not visible.
Using a pre-emergent herbicide around your property could stop these territorial plants from overtaking your home's most valued green space. Pre-emergent herbicide is a type of weed killer that prevents weed seeds from sprouting. Unlike normal herbicide, it is meant to stop weeds from growing in the first place by spraying or spreading a chemical onto the soil so that weeds have difficulty placing down their roots.
(April 2015). Emergent literacy is a term that is used to explain a child's knowledge of reading and writing skills before they learn how to read and write words. It signals a belief that, in literate society, young childrenâeven one-and two-year oldsâare in the process of becoming literate.he basic components of emergent literacy include: 1  Print motivation: Being interested in and enjoying books. 2  Vocabulary: Knowing the names of things. 3  Print awareness: Noticing print, knowing how to handle a book, and knowing how to follow words on a page.