Based on fossils and evidence from genetics, morphology and development, and other features of flowering plants, botanists hypothesize that the first flowering plants had ________.
A) tubular flowers formed from three petals
B) flowers with a single pistil formed from three fused carpels
C) flowers without petals or sepals
D) radial flowers with numerous petals arranged spirally
E) flowers with either pistils or stamens, but not both together
Correct Answer:
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Q35: Which of the following is NOT a
Q36: Pollination involves the
A) fusion of egg and
Q37: _ species have imperfect (unisexual) flowers on
Q38: These flower parts are generally green and
Q39: Flowers with well-developed landing platforms and nectar
Q41: Parthenocarpy involves fruits that develop from ovaries
Q42: Bats and other mammals are pollinators of
Q43: Bird-pollinated flowers tend to be white or
Q44: Each microspore mother cell normally divides to
Q45: Endosperm is the principal food-storage tissue of
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