A scientist is evaluating factors that may influence productivity of algae. He conducts an experiment where has a control (C), he adds phosphorus (+P), he adds nitrogen (+N), and he adds both phosphorus and nitrogen (+P+N). Based on the results shown below the scientist would correctly conclude:

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter20: Ecosystems And The Biosphere
Section: Chapter Questions
Problem 1ACQ: Figure 20.12 Which of the following statements about the nitrogen cycle is false? a. Ammonification...
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+P
+N
+P+N
O The productivity of the algae are limited first by phosphorus and then after adding
nitrogen the algae are nitrogen limited.
O If the experiment also included a treatment with added phosphorus, nitrogen, and sulfur
you would expect productivity to be even larger than the +P+N treatment.
O The productivity of algae are limited first by nitrogen and then after adding nitrogen the
algae are phosphorus limited.
O The productivity of the algae are equally limited by nitrogen and phosphorus.
Productivity g Carbon / di
Transcribed Image Text:+P +N +P+N O The productivity of the algae are limited first by phosphorus and then after adding nitrogen the algae are nitrogen limited. O If the experiment also included a treatment with added phosphorus, nitrogen, and sulfur you would expect productivity to be even larger than the +P+N treatment. O The productivity of algae are limited first by nitrogen and then after adding nitrogen the algae are phosphorus limited. O The productivity of the algae are equally limited by nitrogen and phosphorus. Productivity g Carbon / di
A scientist is evaluating factors that may influence productivity of algae. He
conducts an experiment where has a control (C), he adds phosphorus (+P), he adds
nitrogen (+N), and he adds both phosphorus and nitrogen (+P+N). Based on the
results shown below the scientist would correctly conclude:
+P
+N
+P+N
O The productivity of the algae are limited first by phosphorus and then after adding
nitrogen the algae are nitrogen limited.
O If the experiment also included a treatment with added phosphorus, nitrogen, and sulfur
you would expect productivity to be even lareer than the +P+N treatment
Productivity g Carbon / day
Transcribed Image Text:A scientist is evaluating factors that may influence productivity of algae. He conducts an experiment where has a control (C), he adds phosphorus (+P), he adds nitrogen (+N), and he adds both phosphorus and nitrogen (+P+N). Based on the results shown below the scientist would correctly conclude: +P +N +P+N O The productivity of the algae are limited first by phosphorus and then after adding nitrogen the algae are nitrogen limited. O If the experiment also included a treatment with added phosphorus, nitrogen, and sulfur you would expect productivity to be even lareer than the +P+N treatment Productivity g Carbon / day
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