Question

fossils are used to study
phylogenetic trees
organisms that live today
organisms that onced lived
how ancient animals behaved

Answer 1

Fossils are primarily used to study **organisms that once lived**. They provide crucial evidence for understanding the history of life on Earth, including the evolution of species and their relationships, which can help in constructing **phylogenetic trees**. Additionally, fossils can offer insights into how ancient animals behaved and interacted with their environments, although this is often more challenging to infer. Overall, fossils serve as vital records of past life forms and their biological characteristics.