★ Must-know
Life arose more than 3.5 billion years ago, and the first organisms were single-celled.
The major themes of biology are:
Further detail
Life themes: cells, stability, reproduction, evolution, interdependence, and energy
1. Which statement correctly distinguishes a cell from an organelle?
2. What is the primary focus of biology as a scientific discipline?
3. Which sequence correctly describes early life on Earth?
What is biology the study of?
Life and living things.
Biology: Target Label
Study of life and living things
What are the major themes of biology?
Cell structure and function, stability and homeostasis, reproduction and inheritance, evolution, interdependence, and matter, energy, and organization.
Major bio themes
Cell structure, stability, reproduction, evolution, interdependence, energy
What is the basic unit of life in all organisms?
A cell.
Cell: Target Label
Basic unit of life; all organisms made of cells
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