Producers Experiment Purpose: To determine what plants need to produce food. Experimental design • Students planted 500 grams (g) of bean seeds in each of six planting containers filled with clean, dry sand. They added 1 gram of dry fertilizer to the sand in each planter. Students placed the six planters in six identical environment chambers where water, light, and air could be controlled. Air gases include oxygen (O2), carbon dioxide (CO2), and nitrogen (N2). • After 3 weeks, students collected, dried, and weighed the seeds or plants. The chart below shows the conditions and results of the experiment. DATA CONDITIONS Starting Ending Mass Light o, co, N, Water change mass mass 551 g 552 g 500 g 549 g Environment A Yes Yes Yes Yes Yes 500 g Environment B Yes Yes Yes Yes No 500 g Environment C Yes Yes Yes No Yes 500 g Environment D Yes Yes No Yes Yes 500 g Yes No Yes Yes Yes 500 g 500 g Environment E No Yes Yes Yes Yes 500 g 500 g Environment F Results: Describe the effect of the five environmental factors (water, light, etc.) on plant growth. Conclusions: What did you learn from the experiment about what plants need to produce food?
Producers Experiment Purpose: To determine what plants need to produce food. Experimental design • Students planted 500 grams (g) of bean seeds in each of six planting containers filled with clean, dry sand. They added 1 gram of dry fertilizer to the sand in each planter. Students placed the six planters in six identical environment chambers where water, light, and air could be controlled. Air gases include oxygen (O2), carbon dioxide (CO2), and nitrogen (N2). • After 3 weeks, students collected, dried, and weighed the seeds or plants. The chart below shows the conditions and results of the experiment. DATA CONDITIONS Starting Ending Mass Light o, co, N, Water change mass mass 551 g 552 g 500 g 549 g Environment A Yes Yes Yes Yes Yes 500 g Environment B Yes Yes Yes Yes No 500 g Environment C Yes Yes Yes No Yes 500 g Environment D Yes Yes No Yes Yes 500 g Yes No Yes Yes Yes 500 g 500 g Environment E No Yes Yes Yes Yes 500 g 500 g Environment F Results: Describe the effect of the five environmental factors (water, light, etc.) on plant growth. Conclusions: What did you learn from the experiment about what plants need to produce food?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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