Which group of Archaea are chemoautotrophic anaerobes that use hydrogen as an electron donor and sulfur compounds as terminal electron acceptors?
A. Thermoacidophiles
B. Halophiles
C. Methanogens
D. Cyanobacteria
Answer: A
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Precipitation reactions carried out in agarose are called
A. hemagglutination tests. B. complement fixation tests. C. immunodiffusion tests. D. ELISA tests.
Sister chromatids separate during
A. prophase of meiosis I. B. metaphase of meiosis I. C. metaphase of meiosis II. D. prometaphase of meiosis I. E. anaphase of meiosis II.
A new plant nutrient is discovered that is needed at 5g/kg of plant dry matter and is required for photosynthesis. When this nutrient is added to the plant as a fertilizer, plant growth increases in comparison to a control group that did not receive the nutrient fertilizer.This nutrient is: (check all that apply)
_____ an essential element. _____ a macronutrient. _____ a micronutrient. _____ a limiting factor.
Describe the production of pollen
What will be an ideal response?