Although archaeans and bacteria can both live in the human belly button, there are differences
between them. Which of the following is a key difference between archaeans and bacteria? -
ANS-Archaeans are found in extreme environments while bacteria are not.
Although bacteria and archaeans are both prokaryotes, only the archaeans are found in extreme
conditions such as hot springs, where bacteria are unlikely to survive. - ANS-prokaryotes,
archaeans, hot springs, bacteria
Although most of the organisms researchers have found in the belly button are bacteria, they
were able to identify two archaean species on one "particularly fragrant" individual as well.
Which of the following statements accurately describe archaeans? - ANS-CORRECT
ANSWERS
- Archaeans are prokaryotic.
- Archaeans are found in extreme environments.
INCORRECT ANSWERS
- Archaeans have mitochondria.
- Archaeans are more closely related to bacteria than eukaryotes.
As part of a research team assigned to identify possible archaeans present in a soil sample, you
decide to recreate some of the conditions in which archaeans are found in hopes of encouraging
their growth in the lab. What could you add to your cultures to encourage archaean growth? -
ANS-CORRECT ANSWERS
- vinegar
- very hot water
- table salt
INCORRECT ANSWER
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