Biology is the science of life, which shares several key properties among all living things. The great diversity of life today evolved from less-diverse ancestral organisms over billions of years. Sci...Biology is the science of life, which shares several key properties among all living things. The great diversity of life today evolved from less-diverse ancestral organisms over billions of years. Science attempts to describe and understand the nature of the universe in whole or in part by rational means. The main goal of science as a field of study is to expand knowledge without any expectation of short-term practical application of that knowledge.
Consider the levels of organization of the biological world, and place each of these items in order from smallest level of organization to most encompassing: skin cell, elephant, water molecule, plane...Consider the levels of organization of the biological world, and place each of these items in order from smallest level of organization to most encompassing: skin cell, elephant, water molecule, planet Earth, tropical rainforest, hydrogen atom, wolf pack, liver. When studying an individual organism, a biologist could examine the cell and its organelles, the tissues that the cells make up, the organs and their respective organ systems, and the sum total—the organism itself.
