Which of the following elements is a macronutrient in plants?
a. sodium
b. calcium
c. manganese
d. zinc
e. copper What will be an ideal response?
B
Biology & Microbiology
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Influential in the opening and closing of stomata.
Choose the letter of the best match: A. abscisic acid B. auxin C. ethylene D. cytokinin E. gibberellin
Biology & Microbiology
The offspring produced via asexual reproduction are genetically ________ to the parents.
A. identical B. indifferent C. parsimonious D. unique
Biology & Microbiology
Epiphyseal line
What will be an ideal response?
Biology & Microbiology
If a tree's heartwood rots out, the tree will
A) not survive because the active xylem is destroyed. B) not survive because the active phloem is destroyed. C) replace the heartwood with sapwood to compensate for the damaged tissue. D) be weaker than normal and more likely to blow over in a storm.
Biology & Microbiology