CAMPBELL MASTERING BIOLOGY ACCESS>I<
18th Edition
ISBN: 9781323766286
Author: Pearson
Publisher: PEARSON
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Chapter 2, Problem 12TYU
FOCUS ON EVOLUTION
The percentage of naturally occurring elements making up the human body are similar to the percentages of these elements found in other organisms. How could you account for this similarity among organisms? Explain your thinking.
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EVOLUTION CONNECTION The percentages of naturallyoccurring elements making up the human body (see Table 2.1)are similar to the percentages of these elements found in otherorganisms. How could you account for this similarity amongorganisms?
The percentage of naturally occurring elements making up the human body (Carbon, hydrogen, oxygen, and nitrogen make up 96% of living matter. Most of the remaining 4% consists of calcium, phosphorus, potassium, and sulfurntages of these elements found in other organisms) are similar to the percentages of these elements found in other organisms. How could you account for this similarity among organisms?
The following is a synthesis sequence or progression that is a hypothesis for Chemical evolution: elements, ionic and covalent bonding to form simple molecules, these simple molecules form simple organic monomers, the monomers undergo dehydration synthesis to form bio polymers, formation of micelles (Pre cells). This concept
a) can only be observed in living cells,
b) is a theory that proves that life could not evolve on other planets.
c) is a hypothetical model that can be confirmed in the laboratory,
d) is a hypothesis that has no supporting evidence from rocks that predate the presence of cells in the fossil record.
e) These are all true.
Chapter 2 Solutions
CAMPBELL MASTERING BIOLOGY ACCESS>I<
Ch. 2.1 - Is a trace element an essenteal element? Explain.Ch. 2.1 - Prob. 2CCCh. 2.2 - A nitrogen atom has 7 protons and the most common...Ch. 2.2 - Prob. 2CCCh. 2.2 - Prob. 3CCCh. 2.3 - Why does the structure HCCH fail to make sense...Ch. 2.3 - What holds the atoms together in a crystal of...Ch. 2.3 - If you were a phamaceutical researcher, why would...Ch. 2.4 - Which type of chemical reaction occurs faster at...Ch. 2.4 - Write an equation that uses the products of...
Ch. 2.5 - Prob. 1CCCh. 2.5 - How can the freezing of water crack boulders?Ch. 2.5 - Compared with a basic solution at pH 9, the same...Ch. 2.5 - What would be the effect on the properties of the...Ch. 2.5 - Prob. 5CCCh. 2 - The reactivity of an atom arises from A. the...Ch. 2 - Which of the following statements correctly...Ch. 2 - Many mammals control their body temperature by...Ch. 2 - We can be sure that a mole of table sugar and a...Ch. 2 - Measurements show that the pH of a particular lake...Ch. 2 - Prob. 6TYUCh. 2 - What coefficients must be placed in the following...Ch. 2 - A Slice of pizza has 500 kcal. If we could burn...Ch. 2 - Draw the hydration shells that from around a...Ch. 2 - What do climate change (see Concept 1.1) and ocean...Ch. 2 - SCIENTIFIC INQUIRY Female luna moths (Actias luna)...Ch. 2 - FOCUS ON EVOLUTION The percentage of naturally...Ch. 2 - FOCUS ON ORGANIZATION Several emergent properties...Ch. 2 - SYNTHESIZE YOUR KNOWLEDGE How do cats drink?...
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- The percentages of naturally occurring elements making up the human body (see Table 2.1) are similar to the percentages of these elements found in other organisms. How could you account for this similarity among organisms?arrow_forwardBiological molecules are necessary for every living thing (every organism) to survive. They help organisms because they provide:arrow_forwardWhich is true for DNA, RNA and Polypeptides? a) Only some have side chains (N groups or R groups extending from the backbone or central chain, b) They are formed from ribose by dehydration synthesis. c) They all have subunits that include nitrogenous bases. d) They were formed spontaneously (first appear) during Chemical Evolution before life. e) All are truearrow_forward
- What distinguishes living things from non-living things? Throughout history, various societies have defined life differently. Based on your scientific experience, what is your definition? How has it changed as you have progressed through your education? What makes water unique? How are these properties important to life?arrow_forwardThe theory of evolution states that all organisms change over the course of time due to environmental/ Earth changes. Natural selection is the main mechanism driving this change. Yet, for life on Earth, there are many unifying characteristics that we all share that form an unbroken bond between all organisms. Energy and Matter, heredity and the genetic code, interrelationships among organisms. These are the "Big Ideas" that bind us all. Each of the following are contributed toward the Living Systems of today: Biochemistry and the "Big 4 Macromolecules" The cellular nature of life Metabolism and energy (Photosynthesis and respiration) Heredity and the universality of DNA (gene control too) Evolutionary mechanisms Describe with all thorough explanations how the vast variety of species of living things came to be, and still tie in all of the similarities they share. How does each of ALL the mentioned above help shape the Unity and Diversity of Life on Earth? Include sources if…arrow_forwardThe theory of evolution states that all organisms change over the course of time due to environmental/ Earth changes. Natural selection is the main mechanism driving this change. Yet, for life on Earth, there are many unifying characteristics that we all share that form an unbroken bond between all organisms. Energy and Matter, heredity and the genetic code, interrelationships among organisms. These are the “Big Ideas” that bind us all. Each of the following are contributed toward the Living Systems of today: Biochemistry and the “Big 4 Macromolecules” The cellular nature of life Metabolism and energy (Photosynthesis and respiration) Heredity and the universality of DNA (gene control too) Evolutionary mechanisms Describe how the vast variety of species of living things came to be, and still tie in all of the similarities they share. How does each of ALL the mentioned above help shape the Unity and Diversity of Life on Earth? Include sources if applicable.aarrow_forward
- According to the big bang theory, _______. a. the universe expanded out from a single point b. Earth and our sun formed simultaneously c. carbon and oxygen were the first elements to form d. all of the abovearrow_forwardTest Your Understanding Know and Comprehend 1. Which of the following elements is mismatched with its properties or function? (a) carbonforms the backbone of organic compounds (b) nitrogencomponent of proteins (c) hydrogenvery electronegative (d) oxygencan participate in hydrogen bonding (e) all of the above are correctly matchedarrow_forwardTest Your Understanding Know and Comprehend 8. Water has a high specific heat because (a) hydrogen bonds must be broken to raise its temperature (b) hydrogen bonds must be formed to raise its temperature (c) it is a poor insulator (d) it has low density considering the size of the molecule (e) it can ionizearrow_forward
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