Lecture : Characteristics of living things and levels or organization
Document Summary
Are composed of 1 or more cells. Living things can reproduce or produce new organisms of the same type. There are two basic types of reproduction : Different individuals uniting to produce the first cell of a new organism. Every living cell has the ability to : Obtain and convert energy from its surroundings. Produces an identical copy and make more cells. The set of chemical reactions that the aid of a microscope occur in living organisms to maintain life. Many pathogens (disease causing agents) are unicellular. Multicellular reproduce, maintain their structure, and respond to their environments. Refers to organisms composed of many cells. Living things must change over time responses to the changes. Living things respond to changes in light, heat, sound, and chemical and mechanical contact. Internal (internal to organisms - hunger, thirst, pain) Living organisms have several different levels that are organized. Smallest unit of an element composed of.
