A Biological Response to Seasonal Changes in the Length of Day

question 67

Multiple Choice

A biological response to seasonal changes in the length of day relative to night is called a ____.

• A) phototropism
• B) photoperiodism
• C) geoperiodism
• D) circadian rhythm
• E) thigmostropism

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Definitions:

Benthic Zone

The environmental zone found at the bottom of water bodies like oceans or lakes, encompassing the surface of the sediment and several layers beneath it.

Organic Matter

Material derived from living organisms, including plants, animals, and their by-products, essential for soil fertility and ecosystem function.

Upper Zones

Refers to regions or layers located towards the top or surface of an area, often pertaining to atmospheric layers, geological strata, or aquatic depths.

Fertile Ecosystems

Ecosystems with high levels of productivity and biodiversity, capable of supporting extensive food webs and numerous species.