BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 20, Problem 9SA
Summary Introduction
Introduction:
A plant pathogen is referred to as an organism that causes disease in the plant. Plant pathogen reduces the ability of plants to produce fiber, food, and harms the economy. The plant pathogen includes viruses, bacteria, and species of protista.
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The greatest difference in health between two groups of plantsof the same species, one group with mycorrhizae and one groupwithout mycorrhizae, would be in an environment(A) where nitrogen-fixing bacteria are abundant.(B) that has soil with poor drainage.(C) that has hot summers and cold winters.(D) in which the soil is relatively deficient in mineral nutrients
Chapter 20 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 20 - All protists _______. a. lack mitochondria c. live...Ch. 20 - Deposits of shells from ancient ________ have been...Ch. 20 - The presence of a contractile vacuole indicates...Ch. 20 - Prob. 4SACh. 20 - Prob. 5SACh. 20 - Prob. 6SACh. 20 - Prob. 7SACh. 20 - Some _______ are bioluminescent and other live...Ch. 20 - Prob. 9SACh. 20 - A high concentration of oil helps _______ stay...
Ch. 20 - Prob. 11SACh. 20 - Prob. 12SACh. 20 - Prob. 13SACh. 20 - Prob. 14SACh. 20 - Prob. 15SACh. 20 - Imagine you are in a developing country where...Ch. 20 - Which groups of protists are scientists most...Ch. 20 - Water in abandoned swimming pools often turns...Ch. 20 - Melvin Calvin and Andrew Benson determined the...Ch. 20 - The protist that causes malaria evolved from a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Spores released from a mushrooms gills are _______. a. dikaryotic c. flagellated b. diploid d. produced by meiosisarrow_forwardWhat term describes the close association of a fungus with the root of a tree? a. arhizoid b. a lichen c. a mycorrhiza d. anendophytearrow_forwardA compound organism consisting of a photoautotroph and a fungus is called (a) an arbuscular endomycorrhiza (b) an ectomycorrhiza (c) a lichen (d) a pathogenic agent (e) an aflatoxinarrow_forward
- What is the symbiotic relationship between fungi and plant roots in which fungal hyphae penetrate the cell walls of the plants root cells? A-extomcorrhixa B vascular mycorrhizae C fungal rhizoids D arbuscar mycorrhiza E lichensarrow_forwardEpiphytes are(A) fungi that attack plants.(B) fungi that form mutualistic associations with roots.(C) nonphotosynthetic parasitic plants.(D) plants that grow on other plants.arrow_forwardWhat term describes the close association of a fungus with the root of a tree? a. a rhizoid b. a lichen c. a mycorrhiza d. an endophytearrow_forward
- Mutualistic associations between fungi and the roots of plants are called (a) lichens (b) mycorrhizae (c) pathogenic associations (d) parasitic haustoria (e) mycotoxic symbiosesarrow_forwardMost fungi obtain nutrients from_____ . a. nonliving organic matter c. living animals b. living plants d. photosynthesisarrow_forwardThe targets for anti-fungal drugs are much more limited than antibiotics or anti-viral medications. Why? a. There are more bacteria and viruses than fungi. b. Fungi can only be targeted during sexual reproduction, while bacteria and viruses can be targeted at any point in their lifespan. c. Fungi cause topical infections, while viruses and bacteria cause systemic infections. d. Human cells are much more similar to fungi cells than bacteria or viruses.arrow_forward
- A mushroom is______ . a. a fungal digestive organ b. the only part of the fungal body made of hyphae c. a reproductive structure that releases sexual spores d. made of haploid hyphaearrow_forwardMycorrhizae enhance plant nutrition mainly by(A) absorbing water and minerals through the fungal hyphae.(B) providing sugar to root cells, which have no chloroplasts.(C) converting atmospheric nitrogen to ammonia.(D) enabling the roots to parasitize neighboring plantsarrow_forwardMycorrhizae a. are a type of lichen.b. are mutualistic relationships.c. help plants gather solar energy.d. help plants gather inorganic nutrients.e. Both b and d are correct.arrow_forward
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