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.
latent Latent is an adjective that you use to describe something that is capable of becoming active or at hand, though it is not currently so. The adjective latent is a tricky word to define because it refers to something there but not there. That is, latent means something that is capable of becoming active or at hand but has not yet achieved that state. The word arrived in Middle English from the Latin word latÄre which means to lie hidden..