Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 30.2, Problem 2CC
Summary Introduction
To determine:
Why do fungal epidemicsgenerally pose a greater risk to asexually propagated crops, an example is seedless banana, the world’s most popular fruit, is losingthe battle against two fungal epidemics.
Introduction:
Epidemics are the rapid spread of a certain disease at a particular time in a specific area affecting a large population. Epidemics can also occur in plant species, like that in human.
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Chapter 30 Solutions
Campbell Biology in Focus
Ch. 30.1 - WHAT IF? If flowers had shorter styles, pollen...Ch. 30.1 - WHAT IF? In some species, sepals look like petals,...Ch. 30.1 - Prob. 3CCCh. 30.2 - Prob. 1CCCh. 30.2 - Prob. 2CCCh. 30.2 - Self-fertilization, or selfing, seems to have...Ch. 30.3 - Prob. 1CCCh. 30.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 30.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 30 - A seed develops from an A. ovum B. embryo. C....
Ch. 30 - A fruit is a A. mature ovary. B. B . mature ovule....Ch. 30 - Double fertilization means that A. flowers must be...Ch. 30 - Golden Rice A. is resistant to various herbicides,...Ch. 30 - Which statement concerning grafting is correct? A....Ch. 30 - Some dioecious species have the XY genotype for...Ch. 30 - A small flower with green petals is most likely A....Ch. 30 - The pollen produced by wind-pollinated plants is...Ch. 30 - The black dots that cover strawberries are...Ch. 30 - DRAW IT Draw a flower and label the parts.Ch. 30 - SCIENTIFIC INQUIRY Critics of GM foods have argued...Ch. 30 - SCIENCE, TECHNOLOGY, AND SOCIETY People have...Ch. 30 - FOCUS ON EVOLUTION With respect to sexual...Ch. 30 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 30 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
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- Advantages of retaining the young sporophyte as an embryo within the parent plant include the following choices:A) The embryo is protected from desiccation.B) The embryo is able to quickly replicate, producing multiple copies that can be widely dispersed.C) The embryo is able to attain nutrients supplied by maternal tissues.D) The embryo is protected from pathogens.E) The embryo is protected from ultraviolet light.arrow_forwardFungi can propagate themselves successfully with their millions of asexual spores. That being the case,why is the production of sexual spores necessary?arrow_forwardWhat are the potential long-term ecological consequences of widespread fungal infections on plant communities and ecosystem dynamics?arrow_forward
- What are the two general ways by which plant pathogens gain entry into the host plant tissue? What are the advantages and disadvantages of each mechanism?arrow_forwardThe specific relationship between a legume and its mutualisticRhizobium strain probably depends on(A) each legume having a chemical dialogue with a fungus.(B) each Rhizobium strain having a form of nitrogenase thatworks only in the appropriate legume host.(C) each legume being found where the soil has only theRhizobium specific to that legume.(D) specific recognition between chemical signals and signalreceptors of the Rhizobium strain and legume species.arrow_forwardWhich of the following methods are considered sexual propagation? Group of answer choices A)Cuttings B)Seeds C)Division D)Graftingarrow_forward
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- In vegetative reproduction, the new individuals are genetically –a) Similarb) Dissimilarc) Abnormald) None of thesearrow_forwardThe ascomycete fungus that causes chestnut blight and has killed an estimated 4 billion chestnut trees in North America was accidentally imported from Asia. Why are plants particularly vulnerable to fungi imported from other regions? How do the plants in Asia protect themselves against ascomycete fungus so they are not affected?arrow_forwardWhy is fungus not noticeable during its vegetative phase?arrow_forward
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