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Home Q & A Board Biology-Related Homework Help General Biology
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madisonraynor_ madisonraynor_
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6 years ago
The pitted end walls of sieve elements are called ____.
  a. plasmodesmata
  b. sieve tubes
  c. companion cells
  d. perforation plates
  e. sieve plates

Question 2

The movement of organic compounds throughout plants is described as ____.
  a. cohesion-tension
  b. source-to-sink
  c. facilitated transport
  d. active transport
  e. transpiration pull
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mas0375mas0375
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6 years ago
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