Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Question
Chapter 27, Problem 3Q
(a)
To determine
To explain: How the aliens are as intelligent as human beings, if they would have a biochemistry similar to humans. The science fiction television shows often depict that the physical appearances of aliens are very similar to the humans.
(b)
To determine
To explain: How the aliens are as intelligent as humans beings, if they would have two legs and two arms as humans. The science fiction television shows often depict that the aliens look very similar to the humans.
(c)
To determine
To explain: How the aliens are as intelligent as human beings, if they would have the same dimensions as a human. The science fiction television often depict that aliens looking very similar to humans.
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Which of the following is not considered a likely solution to the question of why we are not currently aware of an extraterrestrial civilization?
Group of answer choices
There is no civilization because civilizations are not common.
The civilization is probably undetectable to us because it makes use of technologies that do not obey the known laws of physics.
There is no galactic civilization because civilizations do not leave their home worlds.
There is no civilization because most civilizations destroy themselves before achieving interstellar travel.
The civilization is deliberately avoiding contact with us.
The Drake equation attempts to calculate the number of communicative civilizations in the galaxy. What does the factor F S represent and why is it considered to be the most uncertain of all the factors in this equation?
Which of the following seems least reasonable regarding life on Earth?
Group of answer choices
There is much scientific evidence suggesting that all creatures living on Earth today appear to have evolved from a common ancestor.
Louis Pasteur discredited the concept of spontaneous generation by demonstrating that even bacteria and other microorganisms arise from parents resembling themselves.
There is ample physical evidence that the earliest life forms on Earth were multicellular creatures, perhaps resembling some of our primitive fish.
When the earth formed some 4.6 billion years ago, it was a lifeless, inhospitable place.
Before the mid-17th century, most people believed that God had created humankind and other higher organisms and that insects, frogs, and other small creatures could arise spontaneously in mud or decaying matter
About billion years into its development, the Earth it was teeming with organisms resembling blue-green algae.
Chapter 27 Solutions
Universe
Ch. 27 - Prob. 1CCCh. 27 - Prob. 2CCCh. 27 - Prob. 3CCCh. 27 - Prob. 4CCCh. 27 - Prob. 5CCCh. 27 - Prob. 6CCCh. 27 - Prob. 7CCCh. 27 - Prob. 8CCCh. 27 - Prob. 9CCCh. 27 - Prob. 10CC
Ch. 27 - Prob. 11CCCh. 27 - Prob. 12CCCh. 27 - Prob. 13CCCh. 27 - Prob. 14CCCh. 27 - Prob. 1CLCCh. 27 - Prob. 1QCh. 27 - Prob. 2QCh. 27 - Prob. 3QCh. 27 - Prob. 4QCh. 27 - Prob. 5QCh. 27 - Prob. 6QCh. 27 - Prob. 7QCh. 27 - Prob. 8QCh. 27 - Prob. 9QCh. 27 - Prob. 10QCh. 27 - Prob. 11QCh. 27 - Prob. 12QCh. 27 - Prob. 13QCh. 27 - Prob. 14QCh. 27 - Prob. 15QCh. 27 - Prob. 16QCh. 27 - Prob. 17QCh. 27 - Prob. 18QCh. 27 - Prob. 19QCh. 27 - Prob. 20QCh. 27 - Prob. 21QCh. 27 - Prob. 22QCh. 27 - Prob. 23QCh. 27 - Prob. 24QCh. 27 - Prob. 25QCh. 27 - Prob. 26QCh. 27 - Prob. 27QCh. 27 - Prob. 28QCh. 27 - Prob. 29QCh. 27 - Prob. 30QCh. 27 - Prob. 31QCh. 27 - Prob. 32QCh. 27 - Prob. 34QCh. 27 - Prob. 35Q
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