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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

Quiz PDF eBook: 
Micro Final Practice 1 - Ken
Download Microbiology #1 Quiz PDF eBook
104 Pages
2014
English US
Educational Materials



Sample Questions from the Micro Final Practice 1 - Ken Quiz

Question: Cellulose is a major component of plants and is only directly digested by

Choices:

herbivores

carnivores.

termites.

microorganisms.

Question: Which of these may pertain to the term strain?

Choices:

coli 0157:H7

coli

minor variation of a species

major variation of a species

coli 0157:H7 AND minor variation of a species

Question: The prokaryotic cell scheme is found in

Choices:

Bacteria.

Archaea.

Eucarya.

All of the choices are correct.

Bacteria AND Archaea.

Question: Bacteria are good models to use because they

Choices:

are large in size.

share many biochemical/physiological properties with more complicated organisms.

can be assembled into multicellular organisms.

have complicated growth requirements.

Question: The system by which organisms are named is referred to as

Choices:

systematics.

naming.

nomenclature.

cladistics.

Question: Which is usually true of Archaea?

Choices:

They are found as rods, spheres, or spirals.

They reproduce by binary fission.

They contain rigid cell walls.

They are found as single cells.

All of the choices are correct.

Question: Organisms

Choices:

may be classified in four domains.

may be classified in three domains.

probably do not have a common ancestor.

have never shared genes between domains.

may be classified in three domains, probably do not have a common ancestor AND have never shared genes between domains.

Question: Viruses may only be grown

Choices:

in sterile, cell-free chemical growth media.

in living cells.

at body temperature.

in darkness.

Question: Cellulose is a major component of plants and is only directly digested by

Choices:

herbivores

carnivores.

termites.

microorganisms.

Question: Although it is said that the twentieth century was the Age of Physics, it is predicted that the twenty-first century will be the age of

Choices:

chemistry.

computers.

microbial biodiversity.

mathematics.

Question: The prokaryotic cell scheme is found in

Choices:

Bacteria.

Archaea.

Eucarya.

All of the choices are correct.

Bacteria AND Archaea.

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Lakeima Roberts
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