Are the three methods of producing the building blocks of life proposed in this chapter mutually exclusive? What will be an ideal response?
ANSWER: No! There is no reason that the accumulation of life's building blocks could not be a
combination of lightening-fueled atmospheric reactions, reactions at hydrothermal events and
delivery from space. It is important to recognize that in this case the competing theories can
all coexist.
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While a mutation will not always change the phenotype of an individual, it will always change the genotype
A. true B. false
The energy required to bring the substrates of a reaction together in the correct way to reach the transition state is called
A. free energy. B. entropy. C. activation energy. D. enthalpy.
What is the ability of living things to maintain a relatively constant internal environment even when the external environment is changing?
What will be an ideal response?
Living organisms increase in complexity as they grow, resulting in a decrease in the entropy of an organism. How does this relate to the second law of thermodynamics?
A) Living organisms do not obey the second law of thermodynamics, which states that entropy must increase with time. B) Life obeys the second law of thermodynamics because the decrease in entropy as the organism grows is exactly balanced by an increase in the entropy of the universe. C) Living organisms do not follow the laws of thermodynamics. D) As a consequence of growing, organisms cause a greater increase in entropy in their environment than the decrease in entropy associated with their growth. E) Living organisms are able to transform energy into entropy.