A) by animals who eat it
B) by floating on water
C) by the wind
D) by attaching to the fur of animals
E) by bursting forth from the seed pod
G) C) and D)
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A) The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges, from the soil it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots.
B) The cotyledon was absorbed by the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots.
C) The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The radicle becomes part of the stem and the hypocotyl develops into the roots.
D) The pericarp has absorbed the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots.
E) The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The plumule and the radicle push through the coleorhiza during germination.
G) A) and E)
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A) petals
B) sepals
C) carpels
D) stamens
E) ovaries
G) B) and D)
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B) False
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A) Apply an auxin to the shady side of the stems.
B) Water the plants more frequently.
C) Apply gibberellins to the bases of the stems.
D) Turn each plant occasionally.
E) Repot the plants.
G) A) and E)
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A) phototropism.
B) photosynthesis.
C) photoperiodism.
D) translocation.
E) transpiration.
G) B) and E)
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A) A pollen tube only grows inside the style of its own species.
B) The stigma is sticky mainly to its own species of pollen.
C) The timing of flowering keeps pollinators moving among a limited number of species.
D) Flowers attract a small number of specialized pollinators and, therefore, pollen is not spread equally to all available species of flowers.
E) All of the answer choices help prevent pollination by a foreign species.
G) All of the above
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A) long-day
B) short-day
C) day-neutral
D) intermediate-day
E) nonflowering
G) C) and D)
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B) False
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A) A legume is a fruit that splits along two sides when mature.
B) They are both simple fruits.
C) The actual seed is inside the pod.
D) Both are green when ripe.
E) Both develop relationships with nitrogen-fixing bacteria.
G) A) and D)
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A) none
B) one
C) two
D) three
E) four
G) A) and E)
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A simple fruit is derived from...View Answer
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A) flower when the night is shorter than a critical length.
B) flower when the night is longer than a critical length.
C) are not dependent on the length of the night or day for flowering.
D) have short stems or long stems, depending on the photoperiod.
E) have flowers that only open during the daytime.
G) C) and E)
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