Connect Plus Biology Access Card for Biology
10th Edition
ISBN: 9780077440190
Author: Peter Raven
Publisher: MCG
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Textbook Question
Chapter 1, Problem 1S
Exobiology is the study of life on other planets. In recent years, scientists have sent various spacecraft out into the galaxy in search for extraterrestrial life. Assuming that all life shares common properties, what should exobiologists be looking for as they explore other worlds?
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Which of the following was likely MOST important for life to begin existing on Earth?
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sunlight
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DNA
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a source of oxygen
D.
a source of energy
Which of the following is the last step in the Oparin-Haldane Model for the beginning of life?
a.
Membranes form around the first cells
b.
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c.
Polymers assembled from simple building blocks
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Which of the following steps has not yet been accomplished byscientists studying the origin of life?(A) synthesis of small RNA polymers by ribozymes(B) formation of molecular aggregates with selectivelypermeable membranes(C) formation of protocells that use DNA to direct thepolymerization of amino acids(D) abiotic synthesis of organic molecules
Chapter 1 Solutions
Connect Plus Biology Access Card for Biology
Ch. 1 - Prob. 1UCh. 1 - Prob. 2UCh. 1 - A hypothesis in biology is best described as a. a...Ch. 1 - Prob. 4UCh. 1 - The cell theory states that a. cells are small. b....Ch. 1 - The molecule DNA is important to biological...Ch. 1 - The organization of living systems is a. linear...Ch. 1 - The idea of evolution a. was original to Darwin....Ch. 1 - What is the significance of Pasteurs experiment to...Ch. 1 - Which of the following is NOT an example of...
Ch. 1 - How is the process of natural selection different...Ch. 1 - If you found a fossil for a modem organism next to...Ch. 1 - The theory of evolution by natural selection is a...Ch. 1 - In which domain of life would you find only...Ch. 1 - Evolutionary conservation occurs when a...Ch. 1 - Exobiology is the study of life on other planets....Ch. 1 - The classic experiment by Pasteur (figure 1.4)...
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- what simple organic molecules were likely the precursors of life? a. water and proteins b. amino acids and nucleotides c. oxygen and carbon d. prokaryotes and eukaryotesarrow_forwardName the study of possible life outside the earth.arrow_forwardWhat were the roles of new thoughts/ideas regarding the universe and new developments in the Scientific Revolution to the development of science and technology?arrow_forward
- What is the most logical theory on the topic of the Origin of Life?arrow_forwardFor how long has there been life on Earth? For what percentage of time has life existed on Earth? For about how many years of geological time have human existed on earth?arrow_forwardThe first forms of life on Earth were thought to be_________. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forward
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- In the Urey-Miller experiments with the origin of life forms, what was the purpose of the electric sparks passed through a mixture of gases? Group of answer choices simulate lightning simulate sunlight simulate temperature produce rain from clouds sterilize the gasesarrow_forwardDescribe the birth of life on earth.arrow_forwardInformations about "LIFE BEGETS LIFE" with scientific proofs.arrow_forward
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