Monocots May Have First Evolved in Frequently Disturbed Environments That

question 81

Multiple Choice

Monocots may have first evolved in frequently disturbed environments that favor an ability to spread horizontally over unstable substrates, instead of the ability to grow tall and shade out competitors. Which of the following characteristics of monocots directly support this hypothesis?

• A)the absence of a vascular cambium
• B)parallel leaf veins
• C)floral organs in whorls of three
• D)the capacity for root initiation at stem nodes
• E)sheathing leaf bases

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