Slide 1

Slide 2 7 th Grade Science Classification Review Slide 3 A:B: A chart that classifies organisms according to their DNA A tool used to examine organisms and their structures to help identify the organism #1 What is a dichotomous key? C:D: NetherBoth Slide 4 B. A tool used to examine organisms and their structures to help identify the organism Slide 5 A:B: To organize living things with similarities into groups Deciding which organisms will survive and reproduce #2 Why do scientists classify organisms? C:D: NeitherBoth Slide 6 A. To organize living things with similarities into groups Slide 7 A: B: Certhidea Platyspiza C:D: Geospiza Camarhynchus Using the dichotomous key, identify the name of Bird X #3 Slide 8 B. Platyspiza Slide 9 A: B: Certhidea Platyspiza C:D: Geospiza Camarhynchus Using the dichotomous key, identify the name of Bird Z #4 Slide 10 D. Camarhynchus Slide 11 A:B: The process by which scientists select organisms from nature #5 What is natural selection? C:D: Both None Process by which organisms that are better suited to their environment are able to survive and reproduce. Slide 12 A. Process by which organisms that are better suited to their environment are able to survive and reproduce. Slide 13 A:B: Natural selection Selective breeding C:D: Natural breedingNone of these #6 The Galpagos Islands are famous for their many different species of finches all descended from a common ancestor. Which of the terms below would explain these differences? Slide 14 A. Natural selection Slide 15 A: B: Movement of organisms from one place to another Humans choose organisms of the same species to create offspring with special traits #7 What is selective breeding? C: D: BothEither Slide 16 B. Humans choose organisms of the same species to create offspring with special traits Slide 17 A:B: Mitosis and MeiosisExtraction and extinction #8 Two processes that affect genetic traits. C:D: Selective breeding and natural selection Migration and hybernation Slide 18 C. Selective breeding and natural selection Slide 19 A:B: The movement of organisms from one place to another to insure survival Organisms remaining in one location as a means of insuring survival #9 What is migration and why do animals migrate? C:D: NeitherBoth Slide 20 A. The movement of organisms from one place to another to insure survival Slide 21 A:B: Natural selection Expedition C:D: MigrationNone of these #10 Monarch butterflies flying from Canada to Mexico is an example of ____________. Slide 22 C. Migration Slide 23 A:B: Adapting to their environment is not important They must adapt to their environment C:D: BothNeither #11 What causes animals to be diverse or different from each other? Slide 24 B. They must adapt to their environment Slide 25 A:B: It helps the chameleon to blend in with its background It helps to insulate the chameleon from cold weather C:D: It allows it attract other chameleons None of these #12 A chameleon has the ability to change colors when needed. How does this characteristic help it to survive? Slide 26 A. It helps the chameleon to blend in with its background. Slide 27 A:B: The behavior must attract other chameleons The behavior must affect the chameleons likelihood of survival C:D: The behavior must occur only during certain seasons None of these #13 A chameleon has the ability to change colors when needed. Which of these must be true in order for natural selection to influence this behavior? Slide 28 B. The behavior must affect the chameleons likelihood of survival Slide 29 A:B: It is trying to attract other salamanders Its colorings are a warning to hungry predators to stay away. C:D: NeitherBoth #14 The skin of the fire salamander secretes a nerve toxin that can paralyze a potential predator. It also has black and yellow markings. What inference can be made about the fact that this salamander has black and yellow markings? Slide 30 B. Its coloring serve as a warning to hungry predators to stay away. Slide 31 A: B: Bar Graph Line Graph C:D: Data TableAll of these Which would be the best way to organize information when classifying animals according to animal group and recorded number extinct. #15 Bar Graph Line Graph Data Table Slide 32 C. Data Table Slide 33 A:B: Cows that produce more milk Cows that eat grass C:D: Cows that are not domesticated Both #16 Which of the following characteristics in cattle is most likely to have occurred because of selective breeding done by humans? Slide 34 A. Cows that produce more milk Slide 35 Great Job!!!! Great Job!!!! Thank you for playing! Thank you for playing!