Bio 114 Exam 2 Questions and Answers Already Passed
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Bio 114 Exm 2
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Bio 114 Exm 2
Bio 114 Exam 2 Questions and Answers
Already Passed
What characteristic sets bacteria apart from archaea?
Bacteria are distinguished by having peptidoglycan in their cell walls, a feature absent in
archaea.
How would you define a synapomorphy?
A synapomorphy is a trait shared by members...
Bio 114 Exam 2 Questions and Answers
Already Passed
What characteristic sets bacteria apart from archaea?
✔✔Bacteria are distinguished by having peptidoglycan in their cell walls, a feature absent in
archaea.
How would you define a synapomorphy?
✔✔A synapomorphy is a trait shared by members of a specific monophyletic group but not
found outside that group.
In ocean ecosystems, who are the primary producers?
✔✔Photosynthetic protists are the main primary producers.
Why are protists and bacteria classified into separate domains?
✔✔Protists possess a membrane-bound nucleus, unlike bacteria which lack this feature.
What provides the strongest evidence that life originated from prokaryotic ancestors rather than
eukaryotic ones?
1
, ✔✔The oldest known fossils are prokaryotic, supporting the idea that life began with
prokaryotes.
What do you call an organism capable of both photosynthesis and heterotrophy?
✔✔Such an organism is known as a mixotroph.
If you find a new organism on a rock surface, what feature will help you identify it as a
bacterium rather than an archaean or eukaryote?
✔✔The presence of peptidoglycan in its cell walls would indicate it is a bacterium.
What are the two domains of prokaryotes?
✔✔Prokaryotes are classified into the domains Bacteria and Archaea.
To determine the variety of bacteria on your shower curtain, what is the most effective approach?
✔✔Direct sequencing is the most efficient method for identifying different types of bacteria.
What are the mechanisms of genetic recombination in prokaryotes?
2
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