The true statement is:
• As evidence changes, scientific theories can also change.
Scientific theories are based on evidence and can be revised or refined as new evidence emerges.
Which statement is true? (1 point)
• As evidence changes, scientific theories can also change.
• Scientific theories only involve finding evidence to explain phenomena.
•
Scientific theories describe natural phenomena, whereas scientific laws explain natural phenomena.
O If a single study or inference is wrong, a scientific theory can be invalidated.
9 answers
While studying in the lab, a scientist discovers that a sample of platypus fur glows blueish-green under ultraviolet light. When would the scientist have enough evidence to propose a theory? (1 point)
• The scientist would need to publish a paper detailing their results in a trusted journal.
• The scientist could propose a theory based only on this initial study.
The scientist could propose a theory after briefly examining samples of other species.
The scientist would need to study many samples of different species over several generations to get enough evidence to propose a theory.
• The scientist would need to publish a paper detailing their results in a trusted journal.
• The scientist could propose a theory based only on this initial study.
The scientist could propose a theory after briefly examining samples of other species.
The scientist would need to study many samples of different species over several generations to get enough evidence to propose a theory.
The correct answer is:
• The scientist would need to study many samples of different species over several generations to get enough evidence to propose a theory.
A theory in science is developed based on a substantial body of evidence and replication of results across multiple studies and contexts, rather than relying solely on initial observations or a limited set of data.
Which statement best describes a scientific theory? (1 point)
• Jose explained that all planets orbit around the sun in an elliptical path.
• Ada predicted the distance a soccer ball traveled when kicked at a certain angle.
Mark predicted that the baseball would drop downward even if dropped while he was upside down.
Eva explained that two brown-haired parents had a child with red hair due to dominant and recessive genes.
• Jose explained that all planets orbit around the sun in an elliptical path.
• Ada predicted the distance a soccer ball traveled when kicked at a certain angle.
Mark predicted that the baseball would drop downward even if dropped while he was upside down.
Eva explained that two brown-haired parents had a child with red hair due to dominant and recessive genes.
The statement that best describes a scientific theory is:
Eva explained that two brown-haired parents had a child with red hair due to dominant and recessive genes.
This statement reflects an explanation based on the principles of genetics, which is a foundational aspect of scientific theories. Scientific theories provide comprehensive explanations of phenomena that are supported by substantial evidence.
Use the following statement to answer the question.
Evolution happens due to natural selection, a process in which organisms that have the genes that are more suited to an environment survive. They pass on their traits to the next generation.
Is this a scientific law? Why or why not?
(1 point)
• No, this statement is supported by evidence that comes from experimentation and observations.
• No, this statement explains how evolution occurs.
• Yes, this statement describes how evolution occurs, but does not explain how.
• Yes, this statement is true.
Evolution happens due to natural selection, a process in which organisms that have the genes that are more suited to an environment survive. They pass on their traits to the next generation.
Is this a scientific law? Why or why not?
(1 point)
• No, this statement is supported by evidence that comes from experimentation and observations.
• No, this statement explains how evolution occurs.
• Yes, this statement describes how evolution occurs, but does not explain how.
• Yes, this statement is true.
The correct answer is:
No, this statement explains how evolution occurs.
A scientific law describes a consistent and universal relationship observed in nature, often expressed in mathematical terms. In contrast, this statement explains the mechanism of evolution (natural selection), which is characteristic of a scientific theory rather than a law.
What could happen if a scientist discovered new information concerning a scientific theory? (1 point)
• The new information could be used to create another, slightly different theory.
Nothing would change since laws and theories have similar components and are interchangeable
• The new information could be used to change the theory into a law.
• Nothing would change since laws and theories have completely aifferent components and are-not interchangeable.
• The new information could be used to create another, slightly different theory.
Nothing would change since laws and theories have similar components and are interchangeable
• The new information could be used to change the theory into a law.
• Nothing would change since laws and theories have completely aifferent components and are-not interchangeable.
The correct answer is:
The new information could be used to create another, slightly different theory.
If a scientist discovers new information that challenges or adds to an existing scientific theory, it could lead to modifications of the current theory or the development of a new, more refined theory that better explains the observed phenomena.