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A 20 mile band that surrounds the earth and contains all life is known as the __________. T or F Ancient Earth’s atmosphere consisted of a lot of oxygen

Biosphere False - very little oxygen

Earth’s early atmosphere contain very little ________gas? How many years ago did the first organism(protocells) appear on earth? ___ billion years ago

Oxygen - 21% 3.5 to 3.9 billion years ago

What is the process that occurs in all living things that produces CO 2 ? Name 1 of the 2 types of dating discussed in the chapter?

Relative or radiometric

What part of our atmosphere do planes fly in ? How old is the earth? 3.8 billion years old 4.2 billion years old 4.6 billion years old or 4.6 million years old

4.6 billion years old

What part of the atmosphere contains most of the earth’s air currents? T or F Only a small fraction of all the species exist today about 99% species of species are extinct

True

What layer of the earth contains the ozone? Where in the United States is there a great example of sedimentary rocks. It’s a great example of relative dating. Yellowstone New Jersey Yosemite Grand Canyon

Grand canyon

Do clouds and snow reflect or absorb sunlight? In the grand canyon where would the oldest fossils been found. TOP MIDDLE BOTTOM

Reflects - cooling the Earth At the bottom

True or False The earth is closest to the sun in the summer On the geological time scale what era did humans evolve? Precambrian Paleozoic Mesozoic Cenozoic

cenozoic

Another name for zero degrees latitude is Vertebrates first evolve in the _________era. Precambrian Paleozoic Mesozoic Cenozoic

paleozoic

Why does the equator get so much rain? T or F In the Precambrian era only unicellular prokaryotes exist

At zero degrees the equator heats up fast and the heat rises as it cools it releases rain.. False- Multicellular eukaryotes

The Great Basin Desert in the U.S. is a desert. How does a mountain range develop this dry condition? The idea that nonliving material can produce life. Biogenesis Spontaneous generation Spontaneous combustion

On the west side of the mountain moisture is released as it climbs east side-dry air comes down an takes moisture out of the earth Spontaneous generation

Flies Meat Maggots Covered jar June 21 In Redi’s experiment what was used as the independent variable?

Towards Covered jars

Why did scientist Charles Keeling take a reading of CO 2 levels in Hawaii ? Prior to life on earth simple organic molecules evolved into complex organic molecules. Which are carbs, nucleic acids and_____.

Proteins

Why do CO 2 levels rise during the winter? What era did dinosaurs roam the earth? Precambrian Paleozoic Mesozoic Cenozoic

Mesozoic

Name one greenhouse gases. What era did life first evolve ? Precambrian Paleozoic Mesozoic Cenozoic

CO2, water vapor, CFC’s methane and nitrous oxide Precambrian

Where do CFC’s come from? When all of the land masses were one it was called___?

Aerosol cans, air conditioners, refrigerators Pangaea

Redi Pasteur Spalinzini Miller & Urey Who was the first scientist to disprove spontaneous generation? (of macro organisms)

-carpool -bicycle -lower your housing heat -plant trees -insulate the house Francesco Redi

Redi Pasteur Spalinzini Miller & Urey he What scientist disproved spontaneous generation of microorganisms?

Absorbs UV light Louis Pasteur

T or F UV light can change our genetic material. According to Haldane & Oparin what triggered life in the oceans?

Sun, light, and heat

What do CFC’s do in an aerosol cans ? Who proved Haldane’s & Oparin’s hypothesis that life began in the oceans? Redi & Pasteur Aristotle & Newton Miller & Urey Martin & Gaccione

Used as propellants Miller and Urey

True or False As warm air rises, it cools and releases water vapor Why did scientists think that the first true cells were anaerobic?

True Early earth lacked oxygen

What gas makes up most of the earth’s atmosphere? What era is know as an explosion of life? Precambrian Paleozoic Mesozoic Cenozoic

en - 78% Paleozoic

The thinning of the ozone layer occurs over ____ regions and may take _____ years to reverse.? How did the first autotrophs make their food? Chemosynthesis or photosynthesis

chemosynthesis

The deflection of winds moving along the surface of the Earth is called the _____ Effect. Who hypothesized that the earth is 200,000 years old based on the sedimentation rate of the Po river Da Vinci Archbishop Usher Galileo Gaccione

Da Vinci

Biogenesis Spontaneous generation Spontaneous combustion The thought that life can only come from life is called ___.

absorb carbon dioxide. Question 31 Answer Biogenesis

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Who was the scientist that used a curved neck flask to disprove spontaneous generation of microorganisms? Redi Pasteur Aristotle Newton Miller Urey

Louis Pasteur

When a fossil is formed it has 100% C 14. What is it called when the fossil has 50% C 14 & 50% C 12.

Half - life

What organism evolved first? eukaryotes prokaryotes protocells

Protocells

Who conducted the experiment below? Newton Pasteur Aristotle Redi Miller Urey

Francesco Redi

Who conducted the experiment below? Redi Pasteur Aristotle Newton Miller Urey

Louis Pasteur

What type of dating is shown in this graph? Relative Radiometric Carbon 14

Radiometric dating

Microsphere & coacervates are examples of ________ Protocells Prokaryotes Eukaryotes

Protocells

Protocells & Prokaryotes lack _____. Cytoplasm DNA Organelles Cell membrane

Organelles

Who disproved spontaneous generation of micro organism ?

Louis Pasteur

Who disproved spontaneous generation of macro organism?

Redi