2. Cells & Heredity Earths Atmosphere Scientific Method

3. DefinitionsGenetics Earths Atmosphere DefinitionsMisc 10 20 30 40

4. What is a constant in an experiment? A.Something that stays the same. Something that stays the same.Something that stays the same. B.Something that changes only once. Something that changes only once.Something that changes only once. C.Something that changes always. Something that changes always.Something that changes always. 10 Points

5. A variable in an experiment is A.Something that changes Something that changesSomething that changes B.Something that stays the same initally. Something that stays the same initally.Something that stays the same initally. C.Something that stays the same always. Something that stays the same alwaysSomething that stays the same always 20 Points

6. An experimental control is A.A method that makes an experiment less reliable. A method that makes an experiment less reliable.A method that makes an experiment less reliable. B.A method that makes an experiment more reliable. A method that makes an experiment more reliable.A method that makes an experiment more reliable. C.Not necessary. Not necessary.Not necessary. 30 Points

7. An organelle that helps break down food particles is A.nucleus. nucleus. B.Golgi apparatus. Golgi apparatus.Golgi apparatus. C.lysosome lysosome.... 40 Points

8. Where is genetic information found in a prokaryote cell? A.chloroplast chloroplast B.Cytoplasm Cytoplasm C.mitochondria mitochondria 10 Points

9. Mitosis (nucleus reproduction) and cytokinesis (cytoplasm reproduction) are at the end of the A.Prokaryotic cell cycle. Prokaryotic cell cycle.Prokaryotic cell cycle. B.Cell cycle. Cell cycle.Cell cycle. C.world. world. 20 Points

10. Each prokaryotic daughter cell must get a complete copy of DNA from the parent. A.It depends. It depends.It depends. B.True. True.True. C.False. False.False. 30 Points

11. Genes are inherited from your A.From your aunts and uncles. From your aunts and uncles.From your aunts and uncles. B.From your grandparents only. From your grandparents only.From your grandparents only. C.parents. parents.parents. 40 Points

12. The Coriolis effect is caused by A.the rotation of the Earth on its axis. the rotation of the Earth on its axisthe rotation of the Earth on its axis B.the revolution of Earth on its axis. the revolution of Earth on its axisthe revolution of Earth on its axis C.the revolution of Earth around the Sun. the revolution of Earth around the Sunthe revolution of Earth around the Sun 10 Points

13. Which of these affects only local climate?. A.a sea breeze a sea breezea sea breeze B.global warming global warmingglobal warming C.a land breeze a land breezea land breeze 20 Points

14. The ozone layer is important because it A.produces harmful radiation. produces harmful radiation.produces harmful radiation. B.absorbs harmful radiation. absorbs harmful radiationabsorbs harmful radiation C.supplies oxygen to us. supplies oxygen to us.supplies oxygen to us. 30 Points

15. Clouds form when air A.rises and warms. rises and warms.rises and warms. B.rises and cools. rises and cools.rises and cools. C.rises and freezes. rises and freezes.rises and freezes. 40 Points

16. How does heat energy get from Earths surface to the clouds and air? A.By convection. By convection.By convection. B.By conduction. By conduction.By conduction. C.By radiation. By radiation.By radiation. 10 Points

17. A scientific model A.must be an exact copy. must be an exact copy.must be an exact copy. B.can help us to understand better. can help us to understand bettercan help us to understand better C.always results from a drawing. always results from a drawing.always results from a drawing. 20 Points

18. What part of the atmosphere contains ozone? A.Troposphere Troposphere B.Stratosphere Stratosphere C.Mesosphere Mesosphere 30 Points

19. A low pressure system brings A.beautiful clear weather.beautiful clear weather. B.stormy weather.stormy weather. C.balmy, cool weather.balmy, cool weather. 40 Points

20. Two things that define air mass are A.temperature and moisture. temperature and moisture.temperature and moisture. B.temperature and altitude. temperature and altitude.temperature and altitude. C.moisture and altitude. moisture and altitude.moisture and altitude. 10 Points

21. Precipitation forms when A.water droplets combine. water droplets combine.water droplets combine. B.water droplets spread out. water droplets spread out.water droplets spread out. C.water droplets freeze quickly. water droplets freeze quickly.water droplets freeze quickly. 20 Points

22. Over half of the energy from the sun is A.absorbed by the Troposphere. absorbed by the Troposphere.absorbed by the Troposphere. B.reflected by the Earths surface. reflected by the Earths surface.reflected by the Earths surface. C.absorbed by the Earths surface. absorbed by the Earths surface.absorbed by the Earths surface. 30 Points

23. Winds move A.due to equal heating of the atmosphere. due to equal heating of the atmosphere.due to equal heating of the atmosphere. B.from low to high pressure areas. from low to high pressure areas.from low to high pressure areas. C.from high to low pressure areas. from high to low pressure areas.from high to low pressure areas. 40 Points