A scientist discovers a fossil of an animal and places it in the fossil record. The organism's bones are similar to the bones of animal T, which appears earlier in the fossil record. Which conclusion is most reasonable? (1 point)
The fossils are from a descendant of animal Τ.
The fossils are from an ancestor of animal T.
The fossils are from animals that lived at the same time.
The fossils came from the same organism.
The most reasonable conclusion is: The fossils are from an ancestor of animal T.
Why do organisms evolve? (1 point)
Organisms with traits that help them survive and reproduce in their environment pass on those traits.
Changes in the environment cause organisms to change.
Organisms make changes to help them survive and reproduce in their environment.
Organisms naturally select traits that help them survive and reproduce.
Organisms with traits that help them survive and reproduce in their environment pass on those traits.
Scientists examine fossils from three different animals. They determine that all three animals share similar structures and record their observations as follows:
• Animal A and animal B have somewhat similar structures.
• Animal A and animal C have very similar structures.
• Animal B and animal C have very similar structures.
The scientists use the similarities to determine the order in which the fossils should appear in the fossil record. Based on the scientists' observations, which order is the most reasonable?
(1 point)
OA, B, C
OA, C. B
OB, A, C
OC, B, A
Based on the scientists' observations that Animal A and Animal C have very similar structures, and that Animal B and Animal C have very similar structures, the most reasonable order in the fossil record would be: OC, B, A.
Scientists discover fossilized bones from two different animals. The scientists consult the fossil record to learn more about the fossils. Which question will the fossil record best answer? (1 point)
How are the animals related to modern animals?
What killed the animals?
Which animal was better equipped to survive?
Which animal is older?