Question

according to theodor schwanns cell theory, cells are the basic units of all living things. it was later found that all cells can only come from other cells. how did this new discovery affect cell theory?
a. the theory was revised to include new information.
b. the theory was incomplete and a new theory replaced it.
c. the theory was replaced because it could not explain new discoveries.
d. the theory remained unchanged because it was already accepted by scientists.

1. all fields of science use theories that allow scientists to make predictions. which of the following explains what happens to theories as new tools become available to scientists?

a. existing theories are replaced by new, better theories.
b. existing theories are revised to include new discoveries.
c. existing theories remain the same and new theories are added.
d. existing theories become laws when enough supporting evidence is obtained.

Explanation:

When new information is discovered in science, existing theories are typically revised to incorporate this new knowledge. In the case of cell - theory, as new facts about cells were found, the theory was updated. Similarly, in general science, when new tools and discoveries are made, existing theories are revised to include the new findings.

Answer:

1. B. The theory was revised to include new information.
2. B. Existing theories are revised to include new discoveries.