Horozontal rows of parenchymal cells that tranport materials horizontally are called?  

A.  rays
B.  tracheids
C.  vessel elements
D.  fibers
E.  sieve tubes


A.  rays

Rays are parenchyma cells produced in horizontal rows by special ray initials (meristematic cells) of the vascular cambium. They function in lateral conduction and food storage. Remember that vascular cambium is part of the secondary plant body and it produces woody tissues.

Biology & Microbiology

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Fill in the blank(s) with the appropriate word(s).

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a. a symport b. passive diffusion c. facilitated diffusion d. active transport

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What will be an ideal response?

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The symmetry of echinoderms generally includes

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