Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 2, Problem 17CTQ
Why can some insects walk on water?
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Chapter 2 Solutions
Biology 2e
Ch. 2 - Figure 2.3 How many neutrons do carbon-12 and...Ch. 2 - Figure 2.7 An atom may give, take, or share...Ch. 2 - Figure 2.24 Which of the following statements is...Ch. 2 - If xenon has an atomic number of 54 and a mass...Ch. 2 - Atoms that vary in the number of neutrons found in...Ch. 2 - Potassium has an atomic number of 19. What is its...Ch. 2 - Which type of bond represents a weak chemical...Ch. 2 - Which of the following statements is not true?...Ch. 2 - When acids are added to a solution, the pH should...Ch. 2 - We call a molecule that binds up excess hydrogen...
Ch. 2 - Which of the following statements is true? Acids...Ch. 2 - Each carbon molecule can bond with as many as...Ch. 2 - Which of the following is not a functional group...Ch. 2 - What makes ionic bonds different from covalent...Ch. 2 - Why are hydrogen bonds and van der Waals...Ch. 2 - Discuss how buffers help prevent drastic swings in...Ch. 2 - Why can some insects walk on water?Ch. 2 - What property of carbon makes it essential for...Ch. 2 - Compare and contrast saturated and unsaturated...
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- Most marine invertebrates are osmotic conformers. How does their body fluid differ from that of sharks and rays, which are also in near osmotic equilibrium with their environment?arrow_forwardNerve conduction Question 6 All of the following are functions of water except? O Acts as a coenzyme in chemical reactions Protects and lubricates tissues Transport Solvent Question 7 Which of the following foods are high in sodium? Select all Baconarrow_forwardWhat 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_forward
- my question is that Sodium chloride is dissolved in water to make a _________________________. In here, sodium chloride is ____________________, and water is _____________________.?arrow_forwardWhy a human floats on water when he or she is dead? Why it does not get drown?arrow_forwardcan not be solved she wants an explanation.she wants to know what would be the weigh of air in the classroomarrow_forward
- Statement 1: Because most solutes cannot cross plasma membranes, water tends to move across membranes in response to differences in solute concentrations inside and outside the cell. Statement 2: Hypotonic solutions cause water molecules to diffuse out of the cell, dehydrating it. Both statements are true. Both statements are false. Statement 1 is true. Statement 2 is false. D Statement 1 is false. Statement 2 is true.arrow_forwardBoth saltwater and freshwater fish have adaptations to control the movement of water and salts across their external surfaces. Describe what would happen without these adaptations.arrow_forwardWhy Is Water So Important to Life?arrow_forward
- Why can an insect "walk" on water? O The insect's weight is negligible. Water has a low density. O Water has a higher surface tension. O The insect must obtain oxygen to survive.arrow_forwardWhen a molecule of water dissociates, H+ and OH- are formed. O 2,2 O 2,1 O 1,2 1,1arrow_forwardWhy are buffers important in living systems?arrow_forward
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