Primary growth (lengthening) arises from ____________________.
Fill in the blank(s) with the appropriate word(s).
apical meristems
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Based on the energy and carbon sources of humans, how would humans be classified?
A. as chemoautotrophs B. as chemoheterotrophs C. as photoheterotrophs D. as photoautotrophs
In disorders caused by multiple trinucleotide repeats, the more repeats there are the later the symptoms
of the disorder become manifested. Indicate whether the statement is true or false.
The organelle that makes steroids in gland cells, regulates calcium in muscle cells, and break down toxins in liver cells is the ___________.
a) lysosomes b) Golgi bodies c) smooth ER d) rough ER
One neurotransmitter associated with sleep, mood, attention, and learning is
A) acetylcholine. B) nitric oxide. C) epinephrine. D) serotonin.