Multiple Choice
Which best explains why the wing of a bat and the fin of a whale are similar in terms of organic chemistry?
1. A Review of General Chemistry
Intro to Organic Chemistry
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Which of the following is not a scientific hypothesis for how life began?
A
Panspermia
B
Abiogenesis
C
Creationism
D
RNA World Hypothesis
Verified step by step guidance1
Understand the definition of a scientific hypothesis: A scientific hypothesis is a proposed explanation for a phenomenon that can be tested through experiments and observations.
Examine each option to determine if it qualifies as a scientific hypothesis: Panspermia, Abiogenesis, RNA World Hypothesis, and Creationism.
Panspermia suggests that life exists throughout the Universe and is distributed by space dust, meteoroids, asteroids, comets, planetoids, or potentially by spacecraft in the form of unintended contamination by microorganisms. This is a testable hypothesis.
Abiogenesis is the natural process of life arising from non-living matter, such as simple organic compounds. This is a scientific hypothesis as it can be tested and explored through experiments.
The RNA World Hypothesis proposes that self-replicating ribonucleic acid (RNA) molecules were precursors to current life (which is based on deoxyribonucleic acid, or DNA). This is a scientific hypothesis because it can be tested through biochemical experiments.
Creationism is based on the belief that life was created by a divine being or higher power. It is not a scientific hypothesis because it cannot be tested or falsified through scientific methods.
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