AP BIOLOGY

EVOLUTION

DARWIN’S THEORY OF NATURAL SELECTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In science, theories are:
A
an educated guess
B
a known fact
C
absolute and unchangeable
D
the best explanation for a set of data or observations
Explanation: 

Detailed explanation-1: -"A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experimentation. Such fact-supported theories are not “guesses” but reliable accounts of the real world.

Detailed explanation-2: -A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses.

Detailed explanation-3: -A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Detailed explanation-4: -A theory is based on substantiated data, repeated testing, and the consensus of a wide group of scientists/researchers. The objective of a theory is to attempt to explain phenomena that have been studied extensively and carefully over time by many researchers.

Detailed explanation-5: -Theories act as a conceptual base for understanding and analyzing the research of any nature, be it in natural/ pure sciences or social sciences. Theories are important for explaining a phenomenon. Theories provide simplified explanations of complexity in reality. Theory guides and concludes the research.

There is 1 question to complete.