Marine Bio Exam 1 Questions and Answers | Latest 2026 Update
Q: What was the main requirement for the development of life on Earth?
Answer:
Absence of free oxygen A marine scientist is studying the amount of dissolved
oxygen in a particular area. They are attempting to connect the data with the type of
organisms found in that area. What kind of marine scientist might they be classified
as? Chemical oceanographer What process accounts for the layers found in Earth?
Density stratification What had the most influence in irreversibly changing the
Earth's atmosphere? Production of oxygen from photosynthesis How long did the
process of density stratification of Earth last? 100 million years What type of marine
scientist studies the Earth's ocean, continents, and climate? Marine geologist What
process involves the clumping of small particles into larger masses? Accretion
Although it currently does not have an ocean, ____ is thought to have had one in the
distant past. Mars High levels of ____ could indicate life on other planets. free
oxygen What forms heavy elements such as gold, mercury, and uranium? A
supernova Which does not describe a law? A law explains observations.
, Q: What is not a possible reason for temperature fluctuations on Earth and
subsequently in the ocean?
Answer:
Accretion What could ultimately be linked to the lack of water on Mars? The large
decrease in carbon dioxide. How long ago did the big bang catalyze the beginning of
the universe? 13.7 billion years ago The scientific method is characterized as: an
orderly process in which theories are verified or rejected. The spinning of a shrinking
nebula marks the transition protostar to a star. False Despite a multitude of names
given to describe portions ocean, it is more accurate to call it a single dynamic world
ocean. True Amino acids, sugars, proteins, and nucleotides are considered the
building blocks of life. True Scientists believe that some answers to proposed
question will ultimately never be known. False The outermost gases of early Earth
were initially destroyed by radiation from the sun, but the underlying atmosphere
remained intact. False The expansion of the universe that began during the big bang
event continues to this day. True
Q: What was the main requirement for the development of life on Earth?
Answer:
Absence of free oxygen A marine scientist is studying the amount of dissolved
oxygen in a particular area. They are attempting to connect the data with the type of
organisms found in that area. What kind of marine scientist might they be classified
as? Chemical oceanographer What process accounts for the layers found in Earth?
Density stratification What had the most influence in irreversibly changing the
Earth's atmosphere? Production of oxygen from photosynthesis How long did the
process of density stratification of Earth last? 100 million years What type of marine
scientist studies the Earth's ocean, continents, and climate? Marine geologist What
process involves the clumping of small particles into larger masses? Accretion
Although it currently does not have an ocean, ____ is thought to have had one in the
distant past. Mars High levels of ____ could indicate life on other planets. free
oxygen What forms heavy elements such as gold, mercury, and uranium? A
supernova Which does not describe a law? A law explains observations.
, Q: What is not a possible reason for temperature fluctuations on Earth and
subsequently in the ocean?
Answer:
Accretion What could ultimately be linked to the lack of water on Mars? The large
decrease in carbon dioxide. How long ago did the big bang catalyze the beginning of
the universe? 13.7 billion years ago The scientific method is characterized as: an
orderly process in which theories are verified or rejected. The spinning of a shrinking
nebula marks the transition protostar to a star. False Despite a multitude of names
given to describe portions ocean, it is more accurate to call it a single dynamic world
ocean. True Amino acids, sugars, proteins, and nucleotides are considered the
building blocks of life. True Scientists believe that some answers to proposed
question will ultimately never be known. False The outermost gases of early Earth
were initially destroyed by radiation from the sun, but the underlying atmosphere
remained intact. False The expansion of the universe that began during the big bang
event continues to this day. True
