A growth-producing region of cell division, known as a/an ________, is found near the tips of stems and roots
A) sporangium
B) cuticle
C) apical meristem
D) lignin
Answer: C
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The principle of ______________ favors the hypothesis that requires the fewest assumptions.
Fill in the blank(s) with the appropriate word(s).
How does diffusion limit size in cells?
a. Once a cell attains a particular size, the transport proteins in the cell membrane stop functioning and diffusion fails. b. The size of the cell dictates the size of lipids in the membrane. If the lipids become too large, diffusion becomes slower and the cells can starve. c. As cells increase in size, the surface-to-volume ratio decreases and diffusion becomes too inefficient to provide nutrients and waste disposal from the cell. d. Cells that are of a particular size, or greater, enter a state of torpor and growth slows until the cell shrinks again.
Which mode of inheritance results in both alleles being detected equally in the heterozygous phenotype?
A) complete dominance B) incomplete dominance C) codominance D) epistasis E) incomplete penetrance
What evolutionary advantage is provided by sexual reproduction?
a. increased genetic diversity b. making clones c. production of genetically identical offspring d. making polyploidy possible e. removal of all genetic mutations