Grade 8 · Science · Change over time | QuizPrint

QuizPrint.CA
Fresh practice from quizprint.ca. Unofficial practice — not a ministry test or resource.
Grade 8 Science: Change over time QuizPrint.CA Ontario · Life Systems — explain how variation and the environment affect which individuals survive and reproduce NameDateScore 1. Shell fossils are found in rock 1200 metres up a mountain. What is the best explanation? 2. Over many generations, a helpful trait usually becomes... 3. Nathan studies mice on dark soil. Dark fur becomes more common over 550 years. Why? 4. If a habitat changes quickly and no individual has a helpful trait, the population may... 5. Which change is passed to offspring as an adaptation? 6. What is an adaptation? 7. Fossils in a lower layer of undisturbed rock are usually... 8. Which outcome is most likely when a species cannot adapt or move as its only habitat disappears? 9. A new disease reaches a population of 306 animals. The population is more likely to survive if... 10. How is selective breeding different from the frog-and-drought example of natural selection? Sign in to manage students and save worksheet results. Fresh practice from quizprint.ca. Unofficial practice — not a ministry test or resource. Answer key Grade 8 Science: Change over time Ontario · Life Systems — explain how variation and the environment affect which individuals survive and reproduce Question numbers match the worksheet. 1.B) that rock was once under the sea 2.B) more common in the population 3.A) dark mice were more likely to survive and have young 4.A) die out 5.D) a bird's beak shape 6.B) a trait that helps a living thing survive in its environment 7.A) older than fossils in the layers above 8.D) extinction 9.B) individuals differ in their traits 10.D) People choose which individuals reproduce in selective breeding. Keep this page if you are printing for a child. Fresh practice from quizprint.ca. Unofficial practice — not a ministry test or resource.

Related worksheets

Same topic, a new set of questions.