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