Explain the biochemical features that are unique to archaea.
What will be an ideal response?
The archaea have a variety of unique features that make them different than the bacteria and eukarya. These include a unique sequence of bases associated with their rRNA, their plasma membrane containing unusual lipids that allow the archaea to function at high temperatures, and their lipids containing glycerol linked to branched-chain hydrocarbons. They also have diverse cell wall types which facilitate their survival in extreme environments. The cell walls lack peptidoglycan, are often composed of polysaccharides, protein, or are absent altogether.
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There are so many gray areas in life, and so many different opinions, that decisions can only be made on a case-by-case basis. This statement best describes:
What personal characteristics and events in Gregor Mendel's life significantly contributed to his ultimate contribution to the study of inheritance?
A. His training in physics and mathematics at the University of Vienna. B. He failed his physics exam. C. He failed his natural history exam. D. He got his teaching license at the age of 21. E. He got a job as a substitute teacher and enjoyed it.
Complex carbohydrates are digested to
A. simple sugars. B. amino acids. C. proteins. D. fatty acids.
The head bobbing of lizards is a visual mating signal
Indicate whether the statement is true or false