Trace remains of organisms that lived long ago are called what? - correct answer ✔✔Fossils
What is NOT used by scientists when comparing organisms to determine whether they share a
common ancestor? - correct answer ✔✔Breeding Habits
What do scientists think was an ancestor of whales? - correct answer ✔✔Land mammal
Over time, animals may change behavior or physical appearance in order to better survive in
their environment. What is this called? - correct answer ✔✔Adaptation
The process by which populations slowly change over time is called? - correct answer
✔✔Evolution
A diagram shows a portion of the fossil record in sedimentary rock. Which layer of rock would
be the oldest. - correct answer ✔✔The bottom one
A timeline of life provided by the remains or imprints of dead organisms. - correct answer
✔✔Fossil record
Groups of individuals of the same species living in the same place ate the same time. - correct
answer ✔✔Population
Evidence examined by scientists to prove that the ancient ancestor of whales was a land-
dwelling mammal. - correct answer ✔✔Fossils