Determine If an Euler Path or an Euler Circuit Exists

question 16

Multiple Choice

Determine if an Euler path or an Euler circuit exists so that a person who plows the roads does not
Have to pass over any street twice. If an Euler path or an Euler circuit exists, find one. The
Intersections of the streets have been labeled for you.

• A)Euler path: B-A-H-G-B-C-D-E-F-I-G-F-C
• B)neither exists
• C)Euler circuit: A-B-C-D-E-F-I-G-H-A
• D)Euler path: C-B-A-H-G-I-F-C-D-E-F

Understand the concept of gene-for-gene resistance and its role in plant defense against pathogens.

Identify and describe the mechanisms of systemic and induced resistance in plants.

Distinguish between constitutive and induced plant defenses.

Explain the role of specific molecules such as salicylic acid, terpenes, and alkaloids in plant defense mechanisms.

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