The ________ of water is caused by the unequal sharing of electrons between oxygen and hydrogen atoms.
Fill in the blank(s) with the appropriate word(s).
polarity
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While rock climbing, you encounter the plant shown in the photo on the right growing out of a crevice.
(a) Is this the sporophyte or the gametophyte? (b) What special name is given to the leaf of this plant?
Genes are expressed as functional and structural __________
a. nucleic acids b. forms of energy c. proteins d. carbohydrates
Studies have shown that in the flowering plant Arabidopsis the development of parts of a flower is
governed by
a. differential uptake of hormone signals from the leaves. b. the oxygen gradient from outside to inside of the closed flower. c. differentiation of cell types as they are formed from the apical meristem. d. the timing of cell division. e. the expression patterns of several floral organ homeotic genes.
Eudicots have stems
a. with scattered vascular bundles. b. with a pith and cortex. c. with no vascular cambium. d. that develop only primary tissues. e. that none of these describe.