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)
Responses
The fossils are from animals that lived at the same time.
The fossils are from animals that lived at the same time.
The fossils are from an ancestor of animal T.
The fossils are from an ancestor of animal T.
The fossils came from the same organism.
The fossils came from the same organism.
The fossils are from a descendant of animal T.
The fossils are from a descendant of animal T.
The fossils are from an ancestor of animal T.
Why do organisms evolve?(1 point)
Responses
Organisms make changes to help them survive and reproduce in their environment.
Organisms make changes to help them survive and reproduce in their environment.
Organisms with traits that help them survive and reproduce in their environment pass on those traits.
Organisms with traits that help them survive and reproduce in their environment pass on those traits.
Changes in the environment cause organisms to change.
Changes in the environment cause organisms to change.
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)
Responses
A, C, B
A, C, B
A, B, C
A, B, C
B, A, C
B, A, C
C, B, A
A, C, B
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)
Responses
Which animal was better equipped to survive?
Which animal was better equipped to survive?
What killed the animals?
What killed the animals?
How are the animals related to modern animals?
How are the animals related to modern animals?
Which animal is older?