B. Anatomy-Study of body's internal and external structures, and relationship between body's parts. C. Physiology-Study of how these structures work as an integrated whole. D. Will focus on humans in this lecture.
Humans are endothermic, maintain stable internal temperature.
Benefit-fully active in diverse environments. Cost-high energy usage, must obtain more food than ectotherms to maintain body temperature. Tissues-consisting of groups of cells with common function. A. Epithelial tissue-covers exposed part of body, lines many internal passages. A. Epithelial tissue-covers exposed part of body, lines many internal passages.