Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 2.6, Problem 1MC
Summary Introduction
To describe:
How the researchers determine that tawny crazy ants use formic acid in their own venom to detoxify fire ant venom.
Concept introduction:
Defensive chemicals are those chemicals that are used by some of the animas to defend themselves by injecting a powerful acid or chemical into their attackers.
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Explain the following.
Salamanders can regenerate limbs, but only under certain conditions. a) What is the effect of denervation on regeneration of a salamander limb? b) What is the role of the nerve supply? c) What protein can substitute for the nerves in enabling regeneration? d) Why can a limb that has never been innervated regenerate?
Refer to the figure shown here. Which of the following would have been a selective agent or pressure that could lead to the reduction in hindlimbs through time?
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B) More emphasis was placed on flexing the backbone than on paddling with hindlimbs for swimming.
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Chapter 2 Solutions
Biology: Concepts and Investigations
Ch. 2.1 - Which four elements do organisms require in the...Ch. 2.1 - Where in an atom are protons, neutrons, and...Ch. 2.1 - What does an elements atomic number indicate?Ch. 2.1 - What is the relationship between the mass of 12C...Ch. 2.1 - Prob. 5MCCh. 2.2 - How are atoms, molecules, and compounds related?Ch. 2.2 - Prob. 2MCCh. 2.2 - Explain how electronegativity differences between...Ch. 2.3 - Prob. 1MCCh. 2.3 - Distinguish between a solute and a solvent and...
Ch. 2.3 - Prob. 3MCCh. 2.3 - Prob. 4MCCh. 2.3 - Prob. 5MCCh. 2.3 - Prob. 6MCCh. 2.4 - How do acids and bases affect a solution's H'...Ch. 2.4 - Prob. 2MCCh. 2.4 - How do buffers regulate the pH of a fluid?Ch. 2.5 - Prob. 1MCCh. 2.5 - Prob. 2MCCh. 2.5 - What is the significance of a protein's shape, and...Ch. 2.5 - What are some differences between RNA and DNA?Ch. 2.5 - Prob. 5MCCh. 2.5 - Prob. 6MCCh. 2.6 - Prob. 1MCCh. 2.6 - Prob. 2MCCh. 2 - Prob. 1MCQCh. 2 - Prob. 2MCQCh. 2 - Prob. 3MCQCh. 2 - Prob. 4MCQCh. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - The vitamin biotin contains 10 atoms of carbon, 16...Ch. 2 - Prob. 2WIOCh. 2 - Prob. 3WIOCh. 2 - Prob. 4WIOCh. 2 - Prob. 5WIOCh. 2 - Prob. 6WIOCh. 2 - Prob. 7WIOCh. 2 - Prob. 1PITCh. 2 - Prob. 2PITCh. 2 - 4. Add monomers, polymers, dehydration synthesis,...
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