5 Questions
What is one of the unifying themes in biology?
Evolution
What do all organisms have that process hereditary information?
Cells
What allows organisms to move, grow, and reproduce?
Energy processing
At what levels of organization can biologists study life?
Molecular biology of a cell to the anatomy and physiology of plants and animals, and evolution of populations
What is one of the immensely diverse forms of life studied by biologists?
Prokaryotic organisms such as archaea and bacteria
Study Notes
Unifying Themes in Biology
- Unity and diversity are two of the unifying themes in biology, which highlight the shared characteristics and diverse forms of life on Earth.
Hereditary Information
- All organisms process hereditary information through DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which contain the genetic instructions for growth, development, and function.
Essential Life Processes
- Energy and chemical reactions allow organisms to move, grow, and reproduce, which are essential processes for life.
Levels of Organization
- Biologists study life at multiple levels of organization, including molecules, cells, organisms, populations, communities, ecosystems, and the biosphere.
Diverse Forms of Life
- One of the immensely diverse forms of life studied by biologists is prokaryotes, which are single-celled microorganisms that lack a true nucleus, such as bacteria.
Test your knowledge of basic biological concepts, including cellular structure, genetics, evolution, and energy processing. Explore the fundamental themes that unite the field of biology and learn about the scientific study of life.
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