A ____ indicates that evolution is occurring.
A. stable population size
B. high rate of migration
C. constant environment
D. change in gene frequency
D. change in gene frequency
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While it was a diverse group in the Mesozoic, the tuatara is one of only two living members of this
lineage.
a. Testudines b. Archosauromorpha c. Squamata d. Sphenodontia e. Amphibia
A flower's _____ has one or more ovaries in which eggs develop, fertilization occurs, and seeds mature
a. pollen sac c. receptacle b. carpel d. sepal
Which of the following is NOT promoted by the
active form of phytochrome? a. seed germination b. root growth c. leaf expansion d. stem branching e. none of these
Cells are largely constructed from four classes of large molecules called ____________________. Fill in the blank(s) with the appropriate word(s)