Grade 8 · Science · Change over time | QuizPrint

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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 1100 metres up a mountain. What is the best explanation? 2. Over many generations, a helpful trait usually becomes... 3. Zara studies mice on dark soil. Dark fur becomes more common over 370 years. Why? 4. What is an adaptation? 5. Which change is passed to offspring as an adaptation? 6. A finch with a beak suited to the seeds it eats shows... 7. Fossils in a lower layer of undisturbed rock are usually... 8. Body fossils and trace fossils both... 9. A new disease reaches a population of 318 animals. The population is more likely to survive if... 10. A drought shrinks a pond. Fish that need deep water die, while a few that tolerate shallow water survive and reproduce. What process is shown? 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.C) more common in the population 3.A) dark mice were more likely to survive and have young 4.C) a trait that helps a living thing survive in its environment 5.B) a bird's beak shape 6.C) an adaptation 7.C) older than fossils in the layers above 8.D) give evidence of past life 9.A) individuals differ in their traits 10.B) natural selection favouring traits suited to the new conditions Keep this page if you are printing for a child. Fresh practice from quizprint.ca. Unofficial practice — not a ministry test or resource.

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