BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 2, Problem 3S
Summary Introduction
To construct:
An argument that indicates the influence of water of life on earth as efforts are made by NASA to search for signs of life on Mars have focused on the search for evidence of liquid water rather than looking directly for
Introduction:
Water is the main constituent on earth as it forms lakes, streams and oceans. It is found in the aquatic living organism. The human body is made up of
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Chapter 2 Solutions
BIOLOGY
Ch. 2.1 - Define an element based on its composition.Ch. 2.1 - Describe the relationship between atomic structure...Ch. 2.1 - Explain where electrons are found in an atom.Ch. 2.2 - Relate atomic structure to the periodic table of...Ch. 2.2 - Prob. 2LOCh. 2.3 - Prob. 1LOCh. 2.3 - Prob. 2LOCh. 2.3 - Prob. 3LOCh. 2.4 - Relate how the structure of water leads to...Ch. 2.4 - Prob. 2LO
Ch. 2.5 - Prob. 1LOCh. 2.5 - Prob. 2LOCh. 2.5 - Prob. 3LOCh. 2.6 - Prob. 1LOCh. 2.6 - Prob. 2LOCh. 2 - Data analysis If we call each step on the x-axis...Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3ACh. 2 - Prob. 4ACh. 2 - If you shake a bottle of oil and vinegar then let...Ch. 2 - The decay of radioactive isotopes involves changes...Ch. 2 - Prob. 1SCh. 2 - A popular theme in science fiction literature has...Ch. 2 - Prob. 3S
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- Name and explain four properties of water that support life.arrow_forwardScientists are interested in investigating how limestone can be used to remediate the effects of acid rain. They collect water from a lake that has recently been exposed to acid rain. They divide the water into 10 different tanks and add different amounts of limestone to nine of the tanks. No limestone is added to one of the tanks. The pH of the water in the tanks is measured before the limestone is added and once every hour for 24 hours. (f) Identify the independent variable in this investigation. (g) Identify the dependent variable in this investigation. (h) Identify the control group in this investigation. (i) Describe one additional variable that has not been mentioned that could affect the results of the investigation. (G) Describe a modification that could be made to the investigation that would affect the results.arrow_forwardYou might have noticed that in space exploration, attention is often focused on the presence or absence of water on other planets. What characteristics of water make it as essential for life as we know it on Earth?arrow_forward
- Several emergent properties of water contribute to the suitability of the environment for life. Choose two properties of water and describe how these properties arise from the structure of water molecules. Next choose any organism, and give specific examples of how the properties of water you described contribute to the survival of the given organism.arrow_forwardExplain how a scanning electron microscope (SEM) can be used in combination with an energy dispersive X-ray spectrometer (EDS) to perform elemental analysis on extremely small particles by placing the statements in the order that they occur. First step Last step Answer Bank An X-ray photon unique to the element composition of the atom is released.arrow_forwardDissolved oxygen is oxygen that is trapped in a fluid. Because many living organisms require oxygen to survive, it is a necessary component of water systems (streams, lakes, rivers, etc.) to support aquatic life. Dissolved oxygen is measured in units of ppm (parts per million). Examine the data in Table 4, which shows the amount of dissolved oxygen present and the number of fish observed in the body of water from which the sample was taken. Dissolved Oxygen (ppm) 0 2 4 6 8 10 12 14 16 18 Number of Fish Observed 0 1 3 10 12 13 15 10 12 13 What patterns do you observe based on the information in Table 4? Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. Interpret the dataarrow_forward
- Discussion in biological significance of water to living organismsarrow_forwardWhat role does the cohesive nature of water play in living systems? Give at least three examples.arrow_forwardCities near the ocean often have less variation between winter and summer than cities inland. Which characteristic of water is related to this observation? A:Temperature stability B:Cohesion C:Good solvent D:Densityarrow_forward
- Why is the discovery of liquid water on Mars important?arrow_forwardExamine the table below and briefly familiarize yourself with just what elements make sea water salty. Remember that table salt is NaCl. List three elements that DO NOT contribute significantly to the saltiness of the ocean. Element: Element: Element: Reasoning:arrow_forwardcompare and contrast the emergent properties of waterarrow_forward
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