Which of the following statements about pollen grains is FALSE?
A) They vary considerably in size and shape.
B) They differ in the number, arrangement, and shape of their apertures.
C) They provide insights into past climates.
D) They provide a means of identifying flowering plants.
E) They are poorly represented in the fossil record.
Correct Answer:
Verified
Q19: All bilaterally symmetrical flowers are:
A)hypogynous.
B)regular.
C)irregular.
D)superior.
E)inferior.
Q20: In flowers with sepals, petals, and stamens
Q21: A polymer in the _ protects the
Q22: When the microspore of an angiosperm divides,
Q23: In most angiosperms, the primary endosperm nucleus
Q25: Which of the following statements concerning transmitting
Q26: In the center of the embryo sac
Q27: Microsporocytes divide by _, forming _.
A)mitosis; haploid
Q28: The innermost layer of the pollen sac
Q29: The process of double fertilization occurs:
A)only in
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