Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 57.2, Problem 3CC
Summary Introduction

To describe: The effective defense system in deterring invertebrate herbivores.

Introduction: Plants have developed some defense mechanism to protect themselves from animals. Some plants have modified their leaves to thorns and spines as a part of the defense mechanism. Some plants have developed chemicals to protect themselves from a predator.

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Chemical Defenses: What is the benefit of having an inducible chemical defense, as opposed to a constitutive chemical defense? (an inducible defense is when the chemical is produced when herbivory is taking place as opposed to a constitutive defense where the chemical is always present) Inducible chemical defense best deters herbivory. With inducible defense predation will take place before a defense compound is produced which means there is damage to the plant before a defense is employed. With inducible defense herbivores are deterred even if no defense compound is produced. With inducible defenses energy is conserved by only producing secondary compounds when needed instead of continually. b 9 A....pdf XE A Week 9 Pre-lab.pdf A 10.7591 978150 A AY9_Week9_ng....xlsx
Epidermal growth factor, Platelet derived growth factor and nerve growth factor are all examples of what type of signaling molecule? a)local mediator b)hormone c)neurotransmitter d)All of the other answers are correct e)contact dependent signaling molecule.
Choose the correct answer. These are chemical messenger that modulate the development of the different organs such that their relative growth is integrated and coordinated with each other? a) Psychohormones b) Fertilizers c) Phytohormones d) Plant Nutrients
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