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67 Cards in this Set
- Front
- Back
Which one of the following factors is considered to be a biotic factor of the ecosystem?
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anthropic activities
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Which of the following anthropic activities is of anthropic origin?
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invasive species
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during a process called coral bleaching, the corals shed their color when the water temperature is either too high or too low. The bleached color of the corals is due to
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bacteria residing inside the corals
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The impact of nitrogen fertilizer on the crown of thorn starfish is due to
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the nitrogen fertalizer promotes the growth of algae that the crown of thorn stargish larvae feed on
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Organisms that can live in extreme conditions belong to a group of organisms known as
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Archaebacteria
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Which one of the following nutritional modes is used by plants?
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photoautotroph
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hydrothermal vents are formed from
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volcanic activities at the junctions of the continental plates
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The cold sea community is formed on the ocean floor where there is a continuing leakage of methane to support a group of producers known as
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chemoautotroph
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Which one of the following factors is considered to be an abiotic factor on the ecosystem?
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rainfall
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Which one of the following ecological crisis is of anthropic origin?
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all of the above
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Corals are animals that form a symbiotic relationship with
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algae
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crown of thorn starfish infestation of the great barrier reef is due to
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Excessice nitrogen fertilizer runoff from farming communities along the coast
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The organisms that can thrive in very low temerature are known as
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psychophiles
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which one of the following nutritional modes is used by plants?
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photoautotroph
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Sperm whales dive to hunt for squid at a depth of
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1,000 meters
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hydrothermal vents support a thriving ecological community from the release of
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hydrogen sulfide
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The cold seep community is formed on the ocean floor where there is a continuing leakage of methane to support a group of producers known as
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chemoautotroph
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In the cold seep, tubeworms are also found to harbor archaebacteria that thrive on hydrogen sulfide; these tubeworms can live up to
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150 years
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Which one of the following organisms plays a critical role in determining the size of richneww of an ecosystem?
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producer
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Which one of the following ecological crisis is of anthropic origin?
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none of the above
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In the great barrier reef, the destruction of the coral reef is caused by
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crown of thorn starfish infestation
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the organisms that can thrive in very low temperature are known as
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psychophiles
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Which of the following nutritional modes is used by plants
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photoautotroph
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sperma whales dive to hunt for squid at a depth of
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1,000 meters
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hydrothermal vents support a thriving ecological community from the release of
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hydrogen sulfide
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the cold seep community is formed on the ocean floor where there is a continuing leakage of methane to support a group of producers known as
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chemoautotroph
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In the cold seep, tubeworms are also found to harbor archaebacteria that thrive on hydrogen sulfide; these tubeworms can live up to
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150 years
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Which one of the following organisms plays a critical role in determining the size and richneww of an ecosystem?
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producer
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Which one of the following ecolgoical crisis is of anthropic orign?
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none of the above
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Corals are animals that form a symbiotic relationship with
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algae
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In the great barrier reef, the destruction of the coral reef is caused by
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crown of thorn starfish infestation
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the organisms that cna withstand high hydrostatic pressure are known as
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Piezophiles
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which one of the following nutritional modes is used by humans?
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chemoheterotrph
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organisms living in the deep ocean will not survive when they are brought to the surface, because the cannot adjust to the
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change in pressure
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the producers of the hydrothermal vents are a group of organisms belong to
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archaebacteria
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which of the following factors is considered to be a biotic factor of the ecosystem?
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anthropic activities
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Which of the following ecological crisis is of anthropic origin?
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invasive species
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water is critical for life because
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all of the above
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microbial life has been found in a sub-glacial lake in antarctica known as
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lake vostak
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the number of galaxies in the cosmo is approximately
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10 billion
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the drake equation is used to calculate
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the number of intelligent life in the milky way galaxy
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complex multicellular life form appeared on earth about _______ years ago
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560 million
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the universe began with matter expanding rapidly in a process known as
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inflation
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the age and formation of the universe were determined by the distribution of the cosmic____ background radiation
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microwave
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the universe was formed from pre big-bang matter about the size of a
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pearl
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stars are composed of primarily
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hydrogen
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as a star continues to burn its hydrogen fuel, it forges elements found in the periodic table, until it reaches _____, which cant be used to form other elements
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iron
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which of the following planets in the solar system have shown sign of water?
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mars
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europa surface is covered with
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ice
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the age of the milky way galaxy is
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13.6 billion years
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the drake equation is used to determine the number of intelligent civilizations in the
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milky way galaxy
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life first appeared on earth about___ years ago
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3,600 million
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the origin of the universe has been estimated according to available data to occur ___ years ago
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13.8 billion
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The satellite W-MAP was launched in 2001 to map ___ distribution in the cosmo
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microwave
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the first stable element formed in the early universe is
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none of the above
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stars glow by the nuclear fusion of
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hydrogen to form helium
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the first three elements that are formed in a star are
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helium, carbon, and oxygen
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which of the following moons of jupiter has shown signs of water?
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europa
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an under ice ocean is likely to be present on
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europa
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the number of stars in the milky galaxy is approximately
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200 billion
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The number of intelligence civilization in the milky way galaxy is estimated by the
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drake equation
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complex human society appeared on earth about___ 100,000 years ago
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10,000
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the theory that best fit with the available scientific data on the cosmic origis is known as the
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big bang theory
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in 1964, 2 physicists accidently discovered that the universe is filled with a background radiation known as
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microwave
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the early univers was a place of violent collision of elementary particles until it cooled abou___years after its initial formation
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380,000
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our sun is a second generation star with a composition of
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70% hydrogen, 30% helium
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the supernova explosion is due to the accumulation of___in a star
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iron
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