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Home Q & A Board Biology-Related Homework Help General Biology
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Luasene Luasene
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6 years ago
Circulatory systems
 
  a. are found in all animals.
  b. result in slow distribution of nutrients and
  gases.
  c. include one or more hearts.
  d. are always closed systems.
  e. are all of these

Question 2

Animals that are able to rely on diffusion of
  gases tend to
 
  a. be small.
  b. be large.
  c. have all cells close to the body surface and
  digestive cavity.
  d. be both a and c.
  e. be both b and c.
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dymasrajadymasraja
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6 years ago
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Luasene Author
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6 years ago
Thanks for your help!!
mambah4
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Just got PERFECT on my quiz
paulinaibarra98
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This site is awesome
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