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Home Q & A Board Biology-Related Homework Help General Biology
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ilan707 ilan707
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6 years ago
Which organ system collects and returns some tissue fluid to the bloodstream and defends the body against infection and tissue damage?
  1.Circulatory system
  2.Endocrine System
  3.Lymph system
  4.Urinary system

Question 2

_____ allow ions and small molecules to be quickly transferred between cells.
  1.Tight junctions
  2.Gap junctions
  3.Adhering junctions
  4.Microvilli
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lorrkelly1lorrkelly1
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ilan707 Author
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6 years ago
Above and beyond my expectations for this site
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