If Peach Trees Growing in Specific Mild Climates of the Southern

question 76

Multiple Choice

If peach trees growing in specific mild climates of the southern United States do not receive about 850 hours of temperatures below 40 degrees, they will not produce flowers in the spring. This is explained by which of the following terms?

• A)photoperiodism
• B)phototropism
• C)senescence
• D)vernalization
• E)dormancy

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Definitions:

Oceanic Crust

The outermost layer of Earth under the ocean basins, composed predominantly of basaltic rock.

Continental Crust

The thick, buoyant part of the Earth's crust that forms the continents, composed mainly of granitic rocks.

Asthenosphere

The semi-fluid layer of the Earth's mantle beneath the lithosphere that allows for the movement of tectonic plates.

Lithosphere

The rigid outer layer of the Earth, including the crust and upper mantle, involved in plate tectonics and continental drift.