What type of thinking is required?
What will be an ideal response?
You are being asked to apply your knowledge of electron
configuration to create one for Argon.
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Which of the following is/are true of the sheath of Leptothrix?
A. May contain ferric and manganic oxides B. Helps protect against microbial predators C. Attaches bacteria to surfaces D. All of the choices are correct.
Answer the following statements true (T) or false (F)
1. Molecular homologies indicate that living species evolved from a common ancestor or interrelated group of common ancestors. 2. Microevolution would be reflected in disequilibrium in Hardy-Weinberg. 3. In red-wing blackbirds, females tend to choose males with the most desirable territories. Males compete for territories. This is an example of intersexual selection combined with intrasexual selection. 4. Sickle-cell anemia is a disease that occurred from a point mutation in the replication of DNA. That mutation causes a change of an amino acid in ?-globulin. Nonrandom mating (not mating with any individual that has the allele for the mutation) could result in the removal of the mutated allele from a population. This would be an example of natural selection. 5. Neutral variation is supported by the observation that most changes in codons occur in the third position within the codon, which often has no effect on the sequence of amino acids in the protein.
Food intoxication usually has a shorter incubation period than food-borne infection.
Answer the following statement true (T) or false (F)
Most cases of viral gastroenteritis are accompanied by high fevers.
Answer the following statement true (T) or false (F)