Answe: Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations. Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment. A mutation is an alteration of the DNA sequence.
Explanation:
Answer:
c. Pyridostigmine binds to the acetylcholinesterase active site and prevents sarin from binding to and modifying the enzyme active site.
Explanation:
Sarin is a toxic compound which inhibits acetylcholinesterase enzyme. This enzyme degrades the neurotransmitter acetylcholine after the required muscle cell stimulation. In absence of its activity, acetylcholine is not degraded and the muscle cells are stimulated uncontrollably. The muscles are not able to relax which ultimately proves fatal for the victim.
Pyridostigmine is also an acetylcholinesterase inhibitor like Sarin. However its period of inhibition is short compared to organophosphorus inhibitors like sarin. It competes with sarin and replaces it in the active site of acetylcholinesterase. The enzyme is still inhibited but for a shorter time as compared to inhibition by Sarin. Hence after sometime, it becomes functional again and resumes its normal activity. Acetycholine starts getting degraded relaxing the muscles.
Answer:
eubacteria and archaebacteria
Explanation:
eubacteria is single celled but archaebacteria is multicellular
Answer:
inherent
Explanation:
its most likely inherited
The second edition of bergey's manual of systemic bacteriology is largely based on of prokaryotic classification.
<h3>What does bergey's manual of systemic bacteriology talk about?</h3>
Since publication of the first edition of Bergey's Manual of Systematic Bacteriology, it has become recognized throughout the world as the principal monographic work in the field of prokaryotic biology. Like a dictionary to a writer, the Manual is usually the first reference that a microbiologist consults when questions arise regarding the characteristics of an unfamiliar species or an unknown strain that bears some similarity to a more familiar one.
While the first edition has served the community well for many years, it has become outdated. As a result, the editorial board of Bergey's Manual Trust, in collaboration with more than 500 of the world's leading authorities in prokaryotic systematics, is in the process of revising Bergey's Manual of Systematic Bacteriology so that it reflects current thinking and advances in the field.
With this information, we can conclude that Phylogenetic classification is now broadly accepted as the preferred method of representing taxonomic relationships among prokaryotes and eukaryotes alike.
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