If you appraise something or someone, you consider them carefully and form an opinion about them. [formal] This prompted many employers to appraise their selection and recruitment policies. [VERB noun] Gloria slid an appraising eye over the rest of the rack before reaching for the dress.
(a) Natural ecosystem boundaries occur between a tropical evergreen and riparian forest, and between the riparian forest and the river that it borders. (b) Natural boundaries occur across the gradient from marine to intertidal to foreshore environments near the shore in temperate coastal regions.
A. Introduce the ecological principles of biotic and abiotic factors; B. Connect the principles to this case study about Baltimore streams. Discussion. Key Idea: Ecosystems have a natural balance of abiotic and biotic factors. Question: What is the definition of an ecosystem? Answer: An ecosystem is an area that includes all the interconnected living (biotic) and non-living (abiotic) components. Question: In