BIOLOGY 152 Study Guide - Dendrite, Positive Feedback, Endocrine System
Document Summary
Body plan best suited for a particular environment: better survival chance. Convergent evolution- different ancestry, similar environment, similar adaptation. Multicellular organisms- all cells need to be nourished. Cells need sufficient surface area to provide for cytoplasm volume. Terrestrial animals carry aqueous environment for their cells. Plasma (in blood) & interstitial fluid (bathes cells) Aqueous environment is required for transport of material from cell to cell and across cell membranes. Valves ensure volume & pressure buildup for expelling blood & one- way movement. Good structure for animals with high metabolism, need for rapid energy replenishment. Cells tissues organs organ systems organism. Tissues: groups of cells with common structure & function. Different tissue types have different structures suited to function. Tissue types- epithelial: covers outside of body; lines organs & cavities (lumen, tight junctions. Protection; prevents fluid loss: mucous membranes. Moist lining of digestive & respiratory tracts: classification: shape, number of layers. Tissue types- epithelial: supported by basement membrane (basal lamina)
