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How many ounces are there in a gallon?

  1. 32
  2. 64
  3. 128
  4. 1/4

Answer(s): C


Use dimensional analysis to convert from gallons to ounces.

1 Gallon = 4 Quarts
1 Quart = 2 Pints
1 Pint = 2 Cups
1 Cup = 8 Ounces

Which of these taxonomic ranks is arranged to show broadest, most inclusive to narrowest, most exclusive?

  1. phylum, species, order
  2. species, genus, family
  3. species, family, class
  4. kingdom, phylum, class

Answer(s): D


From broadest to most narrow, the order of taxonomic rank is: life, domain, kingdom, phylum, class, order, family, genus, species

The ability of an open system to regulate its internal environment to maintain stable conditions is _____________.

  1. negative feedback
  2. biofeedback
  3. osmosis
  4. homeostasis

Answer(s): D


Homeostasis is defined as the regulation of variables so that internal conditions remain stable and balanced.

Which of these is not a biotic factor?

  1. rock
  2. rose
  3. child
  4. worm

Answer(s): A


A biotic factor is a living thing such as a plant or animal. Rocks do not meet this definition.

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