Exam 13: Early Life Forms and the Viruses

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The close relationship between ____ and animals can be seen in the similarity of these protists and sponges, simple animals.

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The ____ began in 2007 and aims to classify the microorganisms the human body supports and how they impact overall health.

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Evidence supporting the lack of oxygen on early Earth includes _____.

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Place the following hypothesized events of the beginning of life in their correct order. I.organic polymers form II.inorganic molecules form III.DNA-based cells form IV.organic monomers form V. protocells in the RNA world form

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Some bacteria in the deep oceans use iron as an energy source to make carbohydrates from carbon dioxide. These bacteria would be classified as ____.

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____ is the best studied species of bacteria.

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The appearance of _____ on Earth due to the action of photosynthetic bacteria occurred about 2.7 billion years ago.

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Plasmodium is a(n)____.

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G. lamblia infection in the gut ____; therefore, some people may be benefited by the presence of this protist.

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The theory that early metabolic reactions occurred in rocks near hydrothermal vents is known as the _____hypothesis.

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The first eukaryotic cells were ____.

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Match the following terms with the description to which they best correspond.
Premises:
diverse lineage of eukaryotes
Responses:
pathogen
halophile
strain
Correct Answer:
Verified
Premises:
Responses:
diverse lineage of eukaryotes
pathogen
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Foraminifera are predatory protists with a ____ shell, which is the ultimate source of _____.

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The ____ spend most of their lives as individual haploid organisms.

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The ____ form of Plasmodium is transferred to  humans through the bite of an infected mosquito.

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According to scientific evidence, the first organisms on Earth must have been ____.

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Match the following terms with the description to which they best correspond.
Premises:
cell lacking a membrane-bound nucleus
Responses:
pathogen
prokaryote
halophile
Correct Answer:
Verified
Premises:
Responses:
cell lacking a membrane-bound nucleus
pathogen
(Matching)
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Match the following terms with the description to which they best correspond.
Premises:
cause of malaria
Responses:
dinoflagellates
apicomplexan
red algae
Correct Answer:
Verified
Premises:
Responses:
cause of malaria
dinoflagellates
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Some archaea are extreme halophiles. This means that they thrive in ___ conditions.

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Anaerobic methanogens produce ____.

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