Final answer:
The fossil record can be used to compare organisms from the past to those of today by providing a chronological sequence of evolutionary changes, revealing genetic variations within species, and depicting an organism's internal structure.
Step-by-step explanation:
The fossil record can be used to compare organisms from the past to those of today in several ways:
- Fossils provide a chronological sequence of evolutionary changes. By studying fossils, scientists can determine the order in which different organisms lived and how they changed over time. This helps in understanding the process of evolution.
- Fossils reveal genetic variations within species. By examining the fossil remains of different individuals within a species, scientists can identify variations in their genetic makeup. This allows them to study the diversity and changes within a species over time.
- Fossils distinctly depict an organism's internal structure. Certain fossils, such as well-preserved bones or teeth, can provide valuable information about an organism's internal structure. This helps in understanding their anatomy and how it may have evolved over time.