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If you open a can of chicken noodle soup and immediately examine it microscopically, you will find no microoganisms. If you let the open can sit on the shelf for a few weeks and then examine it, you will find lots of microorganisms. The origin of these microorganisms is most likely:
If an individual was bitten by a tick and develops a Bull's eye rash, which organism could be causing these symptoms?
Paralytic shellfish poisoning occurs when ________ are eaten by humans or marine mammals.
Bacteria are useful in all of the following ways, EXCEPT:
They transfer plasmids containing antibiotic resistance genes
What is so significant about the evolution of photosynthesis on Earth?
It allowed aerobic, multicellular organism to evolve.
Fungal cell walls are different from plant cell walls because fungal walls contain:
chitin, while plant walls have cellulose
Which of the following represents an appropriate scientific name for a human?
Homo sapiens (in all italics)
Based on current knowledge about the conditions of the early Earth, the first organisms were most likely:
Which of the following is FALSE about the Endosymbiont theory?
It states that an anaerobic predatory cell engulfed an aerobic bacterium which evolved into a chloroplast
The Miller-Urey experiment showed that:
it is possible to create simple biomolecules such as sugars and amino acids by reacting ammonia, water vapor, methane, and hydrogen gas in a chamber filled with electric sparks
Molds easily contaminate foods because fungi:
produce huge numbers of highly mobile, airborne spores.
Who was the Swedish naturalist who established the modern binomial system for classifying organisms?
Which of the following about HIV is FALSE?
it is spread in the same way in which the Polio virus is spread
The scenario of chemical evolution leading to the origin of life on Earth is plausible because:
there was a vast period of time for simple chemicals to evolve into complex cells.
When a zygosporangium germinates, it must undergo ________ before forming a stalked sporangium.
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