fossils and genes are used to determine(1 point) Responses how species will change over time. how species will change over time. differences between organisms. differences between organisms. how many mutations occurred in a species over time. how many mutations occurred in a species over time. how species interact with each other.

Fossils and genes are used to determine two main aspects: (1) how species have changed over time and (2) the differences between organisms.

1. How species have changed over time: Fossils provide important evidence of past life forms and help paleontologists understand how species have evolved and adapted over millions of years. By studying the fossil record, scientists can determine the characteristics of ancient species, the timeline of their existence, and the transitional forms that link different species together.

2. Differences between organisms: Genes, on the other hand, are used to study the genetic variation and differences between individuals and species. By comparing the genes of different organisms, scientists can gain insights into their evolutionary relationships and determine the degree of genetic variation that exists within and between species.

In summary, both fossils and genes are valuable tools for understanding how species have changed over time and identifying the differences between organisms.