What key features of Bacillus anthracis makes the anthrax disease impossible to eradicate?
What will be an ideal response?
Answer: Bacillus anthracis is a soil microorganism that forms spores and can survive for long periods of time under adverse conditions. Spores are very resistant to drying, heat, or cold. It would be impossible to kill the B. anthracis cells in soil around the world, so the disease cannot be eradicated. It is controlled by vaccinating livestock animals to protect livestock populations. Some high-risk people who may come into contact with contaminate materials or animals are also vaccinated. Anthrax is a rare disease among the general population, but it can never be completely eradicated.
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The hadal zone is that part of the benthic environment deeper than 6000 m. Indicate whether the statement is true or false
How many nucleotides can be added by eukaryotic polymerases per second?
A. 400 B. 40 C. 500 D. 50 E. 1,000
Two hundred years ago, the fly species Rhagoletis pomonella only laid its eggs on fruit of the hawthorn tree. Today, different "host races" of R. pomonella lay their eggs on hawthorns OR apples. Apples occur within the range of hawthorns, so divergence between apple flies and hawthorn flies could be the first step in sympatric speciation. Choose the evidence that would suggest that R. pomonella is currently undergoing sympatric speciation. Check all that apply.A) Apple flies typically mate with apple flies, and hawthorn flies typically mate with hawthorn flies.B) Apple flies and hawthorn flies emerge from their hosts at different times of the year.C) Apple flies and hawthorn flies are able to form fertile hybrids.D) Apple flies and hawthorn flies are physically indistinguishable
from each other. What will be an ideal response?
Match the microscopy vocabulary word with it's definition.
Resolution A) Focus is maintained when the magnification is changed B) Ability to distinguish two objects as separate C) Area observed through the ocular lens D) Distance between the specimen and the objective lens