The precursor from which steroid hormones are made is ________
Fill in the blank(s) with correct word
cholesterol
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Helix-turn-helix and zinc fingers are secondary structural motifs in DNA and RNA, respectively.
Answer the following statement true (T) or false (F)
Bipolar cells carry signals from rods and cones to:
A. ganglion cells B. the retina C. the visual cortex of the brain D. horizontal cells
Harold is so sad that for months he can barely get out of bed. If he does, he just sits at the kitchen table with his head on his hands. Yet for a few weeks, about once every four or five months, he reverses mood. He becomes chatty and animated, uncharacteristically spending lavishly. Harold most likely has
A) schizophrenia. B) euphoria. C) bipolar disorder. D) major depressive disorder.
Why is seed dormancy an important plant adaptation?
What will be an ideal response?