NATS 1675 Chapter Notes - Chapter 1-2: Heredity, Eukaryote, Photosynthesis
Document Summary
Biology: the study of living organisms and their environments. They (1) are organized, (2) acquire materials and energy, (3) are homeostatic, (4) respond to stimuli, (5) reproduce and grow, and (6) have an evolutionary history. Humans are multicellular, because they are composed of many different types of cells. Tissue: it is a group of similar cells that perform a particular function. Several types of tissues make up an organ, and each organ belongs to an organ system. The organs of an organ system work together to accomplish a common purpose. The brain works with the spinal cord to send commands to body parts by way of nerves. Organisms, such as trees and humans, are a collection of organ systems. Population: it is when all members of one species (a group of interbreeding organisms) in a particular area belong. Community: it is an interacting group of various species in a common location.
