BIOL 1840U Study Guide - Fall 2018, Comprehensive Midterm Notes - Dna, Photosynthesis, Carbohydrate
Document Summary
Expectations: at the end of this week you should know the following: the shared characteristics of living organisms, the characteristics of the different major groups of organisms. Life on earth first appeared more than 3. 5 billion years ago. Actively take in energy from their environment. Sense their environment and respond to it. All living things are made of cells. The cell is the basic unit of life. Cells are tiny self-contained units that make up every living organism. A bacterium is made up of a single cell. Multicellular organisms such as humans are made of many different kinds of specialized cells. Living organisms can reproduce or replicate themselves. Single-celled organisms such as bacteria, reproduce by dividing in two. Multicellular organisms reproduce in a variety of ways - for example, plants reproduce seeds. All organisms contain dna in their cells which is the genetic material of life. Dna controls all cellular process including reproduction.
