A theory is an explanation for a broad category of observations or phenomena that is backed by a large body of evidence. Theories have two parts: a pattern (something that happens in the natural world) and a process (what causes the pattern to appear).
What is a scientific theory quizlet?
A well-proven explanation that brings together a wide range of observations and hypotheses and that enables scientists to make precise predictions about novel situations is referred to as a scientific theory.
What is cell theory quizlet?
The cell theory asserts that: – Cells are the fundamental unit of structure in all living organisms. Multicellular organisms, such as humans, are composed of many cells, while unicellular organisms, such as bacteria, are composed of just one cell.
What is a theory and example?
A theory is defined as an idea to explain something or a set of guiding principles. Einsteins theories of relativity are examples of theories of relativity, and examples of theories of evolution include the scientific principles of evolution used to explain human life.
A well-supported, evidence-based theory becomes accepted until it is refuted; it never develops into a fact, and that is a fact. A theory is an explanation of one or more facts.
Is evolution a theory?
It is undeniable that organisms have changed, or evolved, throughout the history of life on Earth, and biologists have identified and investigated mechanisms that can explain the main patterns of change. Evolution, in this context, is both a fact and a theory.