Original Project
Evolution and Natural Selection
Item EN046003: Cats, dogs, fish, and birds all share an ancient common ancestor.
Some animals, such as a cat and a dog, have many similarities. Others, such as a fish and a bird, have fewer similarities. What is TRUE about the ancestors of these animals?
- Cats and dogs share a common ancestor with each other, but fish and birds do not share a common ancestor with each other.
- Cats and dogs share a common ancestor with each other, and fish and birds share a common ancestor with each other, but cats and dogs do not share a common ancestor with fish and birds.
- Because cats, dogs, fish, and birds are separate species, none of them shares a common ancestor with any other.
- Cats, dogs, fish, and birds all share an ancient common ancestor.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 1619 |
6–8 n = 1056 |
9–12 n = 563 |
Male n = 745 |
Female n = 822 |
English n = 1464 |
Other n = 106 |
|
| A. | 41% | 42% | 39% | 41% | 41% | 41% | 41% |
| B. | 21% | 21% | 21% | 19% | 22% | 21% | 22% |
| C. | 22% | 25% | 16% | 22% | 22% | 22% | 19% |
| D. | 17% | 12% | 25% | 18% | 15% | 16% | 19% |