BIOLOGY HOW LIFE WORKS (LL) W/ 2 TERM AC
BIOLOGY HOW LIFE WORKS (LL) W/ 2 TERM AC
3rd Edition
ISBN: 9781319533168
Author: Morris
Publisher: MAC HIGHER
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Chapter 47.3, Problem 8SAQ
Summary Introduction

To explain:

The reason why global primary production patterns show strong latitudinal variation, whereas primary production in the oceans varies largely with distance from shore.

Introduction:

Primary production refers to the overall production of primary producers or the production of organic compound with the help of atmospheric carbon dioxide. Primary production takes place through photosynthesis, in which the solar energy is converted into chemical energy.

Expert Solution & Answer
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Explanation of Solution

Nutrient limitation and climate play major roles in determining the primary productivity of ecosystems. Variation in primary production represents the variations in nutrient availability and climate. Global primary production on land is supported by warm and wet climates near the equator. This climate is responsible for highly productive forests. The areas with cold and dry climates have low productivity levels.

In marine realm, water is abundant, so it cannot act as a limiting factor for the primary production. There are high photosynthetic rates along the continental margins and low rates at the center of the oceans. This rate is higher at the margins because runoff phosphorus and nitrogen from continents is supplied to the oceans that increase the primary productivity.

Conclusion

Global primary productivity patterns vary due to climatic conditions, while primary production in the marine realm varies due to nitrogen and phosphorus availability.

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