Why do classification systems change over time?

a. scientists find new evidence in their studies.
b. scientists use old methods of classification.
c. scientists repeat experiments and find no changes.
d. scientists find similar evidence to previous work.

Answer;

A. Scientists find new evidence in their studies.

Explanation;Classification systems are those systems that are used by scientists to classify organisms based on their similarities and differences. These classifications systems may change over as a result of advancement in technology, such as DNA technology which has enabled scientists to find new evidences in their studies and thus re-examine the relationships among organisms.

Scientists find new evidence in their studies.

Explanation:

Why do classification systems change over time?

Scientists find new evidence in their studies.

Eleven islands make up 95 percent of the Philippine landmass, and two of these — Luzon and Mindanao — measure 105,000 square kilometers (40,541 sq mi) and 95,000 square kilometers (36,680 sq mi), respectively.