The function of xylem is to ____
a. conduct water downward in the plant
b. transport food upward in the plant
c. transport water and minerals
d. transfer materials from leaf to stem
e. contain sieve tubes
c
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Thyroid hormone's main effect is on:
a. calcium levels b. iron levels c. metabolism and development d. sexual reproduction e. water reabsorption
Histone tail modifications establish and maintain the different chromatin structures found in heterochromatin and euchromatin.
a. true b. false
Eukaryotic cells contain membrane bound _____________________ in their cytoplasm.
Fill in the blank(s) with the appropriate word(s).
To obtain optimal production in a small garden, one should
A) plant seeds in rows with minimal spacing between rows. B) plant seeds in clumps with large spaces between clumps. C) plant seeds in a uniform pattern throughout the garden. D) sow seeds randomly throughout the garden.