02:49Nitrogen Fixation - Seven Wonders of the Microbe World (4/7)OpenLearn from The Open University379views
03:27Nitrogen & Phosphorus Cycles: Always Recycle! Part 2 - Crash Course Ecology #9CrashCourse695views
Multiple ChoiceIn root nodules, the plants provide __________, and the bacteria provide __________. 407views
Multiple ChoiceLegumes (members of the pea family) have roots with swellings called nodules that __________. 489views
Multiple ChoiceWhich of these describes the initial interaction between Rhizobium and a soybean root? 469views
Multiple ChoiceThe enzyme complex that catalyzes the conversion of atmospheric nitrogen to ammonia is __________. 494views
Multiple ChoiceThe most abundant gas in our atmosphere cannot be used by plants directly in its atmospheric form. Fortunately, this gas is made available to some plants by certain bacteria that live symbiotically in their roots. What is this gas? 592views
Multiple ChoiceBy trapping insects, carnivorous plants obtain __________, which they need __________. 810views1rank
Textbook QuestionWhich of the following activities of soil bacteria does not contribute to creating usable nitrogen supplies for plant use? a. the fixation of atmospheric nitrogen b. the conversion of ammonium ions to nitrate ions c. the decomposition of dead animals d. the assembly of amino acids into proteins460views
Textbook QuestionBy trapping insects, carnivorous plants obtain ___________, which they need ___________ . (Choose the best answer.) a. water ... because they live in dry soil b. nitrogen ... to make sugar c. phosphorus ... to make protein d. nitrogen ... to make protein471views
Textbook QuestionCertain types of fungi cause diseases in plants. There are a variety of antifungal sprays that can be used to control this problem. Some gardeners constantly spray their plants with fungicides, even when no signs of disease are evident. How might this be disadvantageous to the plant?544views
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