Zones in lakes and oceans are delineated by depth, distance from shore, or light penetration. Different zones have different physical and chemical characteristics, such as temperature and salinity. Label the diagrams of zonation in lakes and oceans.
Note:
A geographical map of lakes and hills are shown

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.