Studied by 2 people
Astronomy has shown us that the Earth
is the only planet in the universe with advanced life
occupies a special location in the universe so that life elsewhere is unlikely
is just one planet orbiting an ordinary star in a vast universe
is the only planet in the universe with any kind of life
is just one planet orbiting an ordinary star in a vast universe
For most of human history it was believed that the Earth was at the center of the universe. This idea is referred to as
stellocentric
egocentric
geocentric
heliocentric
geocentric
A habitable world is defined to be one that
has an atmosphere
has conditions suitable for life
is identical to the Earth
is in orbit about a solar-type star
has conditions suitable for life
Extraterrestrial life elsewhere in the universe
will be completely different than life on Earth
will be unrecognizable
will be identical to life on Earth
could be similar to life on Earth or might be completely different
could be similar to life on Earth or might be completely different
Astronomy has shown us that the fundamental laws of physics are
completely random and unpredictable
different on other planets in our solar system
the same everywhere in the universe
the same in our solar system but different beyond the solar system
the same everywhere in the universe
The fact that the life on Earth seems to have appeared quite rapidly suggests that life
can arise on most habitable worlds
on any kind of planet is inevitable
can only appear soon after a planet forms
is only possible on Earth-like planets
can arise on most habitable worlds
The discovery of any kind of life beyond the Earth would:
only be on interest to biologists
be of interest to all scientists, but of little interest to the wider public
be of no interest to anyone at all
cause a profound change in perspective of the whole of humanity
cause a profound change in perspective of the whole of humanity
The molecular building blocks of life have been found
on the Earth and in meteorites
only on the Earth
on the Earth, in interstellar clouds, and in meteorites
on the Earth and on Mars
on the Earth, in interstellar clouds, and in meteorites
Which three branches of science are most important in our study of life in the universe?
physics, mathematics, and astronomy
astronomy, planetary science, and biology
planetary science, biology, and mathematics
biology, mathematics, and physics
astronomy, planetary science, and biology
The discovery of extrasolar planets indicates that planets around other stars are
common
nonexistent
all Earth-like
relatively rare
common
Biologists have found that life on Earth can
survive over only a very narrow range of environmental conditions
only survive on the surface of the Earth
survive only in the presence of sunlight
survive over a wide range of environmental conditions
survive over a wide range of environmental conditions
Humanity has been thinking about the possibility of extraterrestrial life
throughout human history since the time of the ancient Greeks
since reports of canals on Mars were first made in the 1870's
since the first reports of unidentified flying objects in the 1940's
throughout human history since the time of the ancient Greeks
Extraterrestrial life is defined to be
advanced life forms that have visited the Earth
life found beyond the Earth which is based on the same biology and chemistry as life on Earth
advanced life found on Earth-like planets around other stars
any kind of life found beyond the Earth
any kind of life found beyond the Earth
The portrayal of nearly all aliens in movies and on TV as being humanoid is
realistic because the human form has several unique qualities that make it a good choice for any advanced civilization
probably unrealistic because the human form is most likely a result of the particular conditions and events that occurred on the Earth
based on the fact that it would be impossible for us to understand anything that wasn't very similar to a human
based on the fact that the human form is the only possible form for an advanced civilization
probably unrealistic because the human form is most likely a result of the particular conditions and events that occurred on the Earth
If life exists on Mars today it will most likely be found
everywhere—on the surface, beneath the surface, and in its atmosphere
beneath the surface
on the surface
in its atmosphere
beneath the surface
Note 
Flashcard (86)