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 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 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.
Why do organisms evolve?(1 point)
Responses
Organisms naturally select traits that help them survive and reproduce.
Organisms naturally select traits that help them survive and reproduce.
Organisms make changes to help them survive and reproduce in their environment.
Organisms make changes to help them survive and reproduce in their environment.
Changes in the environment cause organisms to change.
Changes in the environment cause organisms to change.
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.
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, B, C
A, B, C
B, A, C
B, A, C
A, C, B
A, C, B
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
What killed the animals?
What killed the animals?
Which animal is older?
Which animal is older?
Which animal was better equipped to survive?
Which animal was better equipped to survive?
How are the animals related to modern animals?
How are the animals related to modern animals?
Are Dinosaurs Still With Us? Quick Check
5 of 55 of 5 Items
Question
How do fossils of the animal Archaeopteryx provide evidence that birds evolved from one group of dinosaurs?(1 point)
Responses
Fossils of Archeopteryx were discovered near fossils of both dinosaurs and birds.
Fossils of , Archeopteryx, were discovered near fossils of both dinosaurs and birds.
Fossils of Archeopteryx have traits that show they were better able to survive than dinosaurs but less able to survive than birds.
Fossils of , Archeopteryx, have traits that show they were better able to survive than dinosaurs but less able to survive than birds.
Fossils of Archaeopteryx are older than fossils of birds but younger than fossils of dinosaurs.
Fossils of , Archaeopteryx, are older than fossils of birds but younger than fossils of dinosaurs.
Fossils of Archaeopteryx have traits of both dinosaurs and birds.
Fossils of , Archaeopteryx, have traits of both dinosaurs and birds.
Fossils of Archaeopteryx have traits of both dinosaurs and birds.
To determine which conclusion is most reasonable, we need to analyze the given information.
In this scenario, the scientist has discovered a fossil of an animal with bones that are similar to the bones of an animal called T, which exists earlier in the fossil record.
Based on this information, the most reasonable conclusion would be that the fossils are from a descendant of animal T.
This conclusion is more likely because the similarities in bone structures suggest a connection between the two organisms. It implies that the animal in the discovered fossil evolved or descended from the earlier animal T.
To arrive at this conclusion, the scientist would have likely considered the principles of evolution, such as natural selection and common ancestry, which provide insights into how species change over time. The scientist may have also examined other evidence, such as geological context or genetic analysis, to support this conclusion.