biology+notes

Vocabulary:

Aquatic Ecosystems
 * Determined by water depth, flow, temperaturw and chemistry
 * Freshwater Wetland-water covers or is near the surface of the soil for at least part of the year.
 * Estuaries- where freshwater rivers meet salt water seas or ocean. Shallow with great amounts of nutrient.Great spawning and nursery grounds for for fish and birds.

Cell Structure and Fuction Ch. 7 Pp168
 * Cell Bio Unit 3 Pp166**
 * 1660's Leewenhoek 1st to use a microscope to study nature.
 * 1665 Hooke look at slices of plants (cork) under the mircroscope
 * Later scientists concluded that plants and animals are mad eup of cells and and that existing cells came from prexisting cells.

Cell Theory
 * All living thinga are composed of cells.
 * Cells are the basic unit of structure and function in living things.
 * New cells are produced from existing cells.
 * Nerve cells cannot be replaced (contradicts cell theory