Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 2, Problem 11TYU
SCIENTIFIC INQUIRY Female luna moths (Actias luna) attract males by emitting chemical signals that spread through the air. A male hundreds of meters away can detect these molecules and fly toward their source. The sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. Each filament of an antenna isequipped with thousands of receptor cells that detect the sex attractant. Based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. What predictions does your hypothesis make? Design an experiment to test one of these predictions.
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Honey bees are visiting two food sites, A and B, at 6 AM in the morning, as shown in Fig. 1 and Fig. 2. Bees at site A are collecting pollen; those at site B are collecting nectar. When bees from site A return to the nest, they must find a cell in the wax combs and store the pollen (Fig. 3). Bees from site B pass their nectar to young Receiver Bees when they return to the nest (Fig. 4).
16. True or False: In Fig. 4, the forager is passing a pheromone to the young receiver bee that slows the rate of JH increase resulting in the normal progression through the age-based division of labor. 17. True or False: If young bees are prevented from interacting with older bees as shown in Fig. 4, they will have reduced exposure to ethyl oleate, which will result in the upregulation of genes such as Am-for and per, their PKG and PER levels will increase, and they will become precocious foragers. 18. True or False: In Fig. 3, if a pollen forager accidentally loses her pollen pellets, she will…
Chapter 2 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 2.1 - MAKE CONNECTIONS Explain how table salt has...Ch. 2.1 - Is a trace element an essential element? Explain.Ch. 2.1 - Prob. 3CCCh. 2.1 - MAKE CONNECTIONS Explain how natural selection...Ch. 2.2 - Prob. 1CCCh. 2.2 - A nitrogen atom has 7 protons, and the most common...Ch. 2.2 - Prob. 3CCCh. 2.2 - Prob. 4CCCh. 2.3 - Why does the structure H C = C H fail to make...Ch. 2.3 - What holds the atoms together in a crystal of...
Ch. 2.3 - What holds the atoms together in a crystal of...Ch. 2.4 - Prob. 1CCCh. 2.4 - Which type of chemical reaction, if any, occurs...Ch. 2.4 - WHAT IF? Write an equation that uses the products...Ch. 2 - Compare an element and a Compound.Ch. 2 - DRAW IT Draw the electron distribution diagrams...Ch. 2 - In terms of electron sharing between atoms,...Ch. 2 - What would happen to the concentration of products...Ch. 2 - Level 1: Knowledge/Comprehension 1. In the term...Ch. 2 - Compared with 31P, the radioactive isotope 32P has...Ch. 2 - The reactivity of an atom arises from (A) the...Ch. 2 - Which Statement is true of all atoms that are...Ch. 2 - Which of the following statements correctly...Ch. 2 - Prob. 6TYUCh. 2 - The atomic number of sulfur is 16. Sulfur combines...Ch. 2 - What coefficients must be placed in the following...Ch. 2 - DRAW IT Draw Lewis dot structures for each...Ch. 2 - EVOLUTION CONNECTION The percentages of naturally...Ch. 2 - SCIENTIFIC INQUIRY Female luna moths (Actias luna)...Ch. 2 - Prob. 12TYUCh. 2 - Prob. 13TYU
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