CSET overview science
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Created by:
laceydarlenejones on April 15, 2012
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33 terms
Terms | Definitions |
|---|---|
 What general name is given to the cells that make up most living things? | Eukaryote |
| Name 2 methods of cell reproduction? | mitosis and meiosis |
| What does photosynthesis create? | glucose and oxygen |
| What do cells create when they respire? | carbon dioxide and water |
| What type of organism could have developed spontaneously in earths early atmosphere? | prokaryotes |
| What is teh dominant invertebrate species? | insects dominate species |
| What types of organisms make up the Protistae kingdom? | prokaryotes |
| What three main functions do bacteria form? | disease causing, digestion assistance (substances in intestines, oil spills), Decomposers part of chemical cycles (nitrogen, carbon, and processes alchol, cheese, antibitotics |
| How many pairs of chromosomes do himans usually have? | 23 pairs = 46 complete number |
| What part of circulatory system carries blood back to the heart? | veins |
| What part of cell transmits signals? | dendrites and neurons |
| What does the endocrine system consist of? | glands and hormones |
| What survival options do subdominant individuals have in an ecosystem? | changes in behavior eat leftovers migrate specialize clinb camaflauge |
| How do plants and animals balance the carbon cycle? | plants produce oxygen which animals need. Animals produce CO2 which plants need. |
| What causes seasons on the earth? | the tilt of the earth |
| What percent of earths atmosphere is nitrogen? and oxygen? | nitrogen 78% and oxygen 20%, WATER VAPOR 1%, OTHER GASES 1%, NITROGEN DOES NOT COMBINE WELL WITH OTHER GASES, MORE NITROGEN |
| About what percentof the earths surface is covered by water? | 3/4 71% or 75% |
| In which direction does Coriolis force pull air in the southern hemisphere? | rotation of earth left |
| About what percent of sea water is salt? | 3.5% |
| How are metamorphic rocks formed? | pressure and heat |
| What subatomic particles do atoms consist of? | protons, neutrons and electrons |
| When do chemical reactions occur? | occur when bonds form or break |
| Does a bodys mass vary? | no |
| What 2 factors determine a bodys velocity? | distance and time |
| How does Newtons second law of gravity describe the relationship between mass and accleration? | Force= mass x acceleration |
| What type of energy does fuel in a cars gas tank represent? | chemical potential |
| What must happen for work to occur? | w=fd |
| What method of transfer moves heat from a heating pad to a persons back? | conduction |
| What determines a waves frequency? | # of vibrations per second |
| What 3 things may happen when light strikes a surface? | refelction, refraction, and absorption |
| Through which type of medium does sound travel most quickly? | solid |
| Where is magnetic North pole? | NE of canada |
| Name 3 types of energy radioactive material can release? | alpha, beta, gamma |
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