Organic compounds are degraded to produce methane by (Archaea/fungi/Pseudomonas).
Fill in the blank(s) with the appropriate word(s).
Archaea
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The normal microbiota of the lower urethra may show
A. Lactobacillus. B. Staphylococcus. C. Corynebacterium. D. Bacteroides. E. All of the choices are correct.
Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. They can be stopped by, for example, a sheet of paper or a few
inches of air. That is one reason that authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006 . What element does an atom of 210Po change into after it emits an alpha particle? What will be an ideal response?
Water evaporation from plant parts is called _____
a. translocation c. transpiration b. expiration d. tension
In peas the trait for tall plants is dominant (T) and the trait for short plants is recessive (t). The trait for yellow seed color is dominant (Y) and the trait for the green seed color is recessive (y). A cross between two plants results in 296 tall yellow plants and 104 tall green plants. Which of the following are most likely to be the genotypes of the parents?
A. TTYY x TTYY B. TTyy x TTYy C. TtYy x TtYy D. TtYy x TTYy E. TtYY x Ttyy