Biology Basics

The unifying themes in biology are cells, hereditary information encoded in genes, evolution, energy processing, and the ability to regulate internal environments.

Biologists can study life at multiple levels of organization, ranging from the molecular biology of a cell to the anatomy and physiology of plants and animals, and the evolution of populations.

Subdisciplines within biology are defined by the nature of their research questions and the tools that they use.

<p>Biologists use the scientific method to make observations, pose questions, and conduct experiments to understand and explain the natural world.</p> Signup and view all the answers

<p>Energy processing is important for organisms as it allows them to move, grow, and reproduce.</p> Signup and view all the answers

<p>Cells are the basic structural and functional units of organisms. They process hereditary information encoded in genes through the process of gene expression, which involves transcription and translation.</p> Signup and view all the answers

<p>Evolution is the process of change in all forms of life over generations. It explains the unity and diversity of life, as all organisms share a common ancestor and have evolved through natural selection and other mechanisms.</p> Signup and view all the answers

<p>Energy processing allows organisms to perform essential life functions such as movement, growth, and reproduction. It is the conversion of energy from one form to another that fuels these processes.</p> Signup and view all the answers

<p>Regulating their internal environments, or homeostasis, allows organisms to maintain stable conditions necessary for their survival and proper functioning.</p> Signup and view all the answers

<p>Biologists study life at various levels of organization, from molecular biology to anatomy and physiology. They use a range of tools such as microscopes, genetic sequencing techniques, and experimental methods to investigate different aspects of life.</p> Signup and view all the answers