<u>Answer:</u>
B. Theories are broad explanations based on many observations and experiment
This statement accurately describes a scientific theory
<u>Explanation:</u>
Scientific theory can be defined as hypothesis which have been supported through research which is using the scientific method. Hypothesis is simply educated guess. It is the beginning stage of the scientific theory
There are many characteristic of scientific theory. These characteristics are testable, replicable, stable, simple and consistent. A theory explains the findings made throughout the review process. A scientific theory may not be the scientific test's final outcome; Scientific theories are interpretation of scientists. It can be changed or sometimes also rejected.
Answer:
I think it is probably A. If it not a. then d.
The law of conservation mass states that <span>the atoms of an object cannot be created or destroyed, but can be moved around and be changed into different particles. So the only answer that makes sense is the first one: Matter can be changed but not created or destroyed.
Hope this helps!</span>
In the year 1850, Rudolf Virchow was studying cells under a microscope, when he observed that cells were dividing and forming new cells. Realizing what he had observed, he understood that living cells reproduce new cells through division. Basing on his conclusion and realization, Virchow proposed that living cells came only from the other living cells.
I would say C. Among all other options, C is the best choice.
