A) rhizoids rather than true roots.
B) flower parts in threes.
C) seeds in a cone.
D) netted leaf veins.
E) two cotyledons.
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A) during development of seeds.
B) upon development of the gametophyte.
C) during the production of egg and sperm.
D) during the production of spores.
E) during the development of vascular tissue.
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Multiple Choice
A) The sporophyte stage lacks vascular tissue.
B) Antheridia and archegonia develop on the prothallus of the gametophyte stage.
C) Fertilization requires moisture for the sperm to swim to the egg within the archegonia.
D) The sporophyte stage is the dominant generation.
E) The gametophyte stage lacks vascular tissue.
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A) The reproductive structures are located in flowers.
B) The flower protects the developing male gametophyte.
C) They are divided into monocots and eudicots.
D) The seeds are enclosed by fruit.
E) They exhibit double fertilization.
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A) a diploid zygote and a haploid polar nucleus.
B) a diploid zygote and a diploid endosperm.
C) a diploid embryo and a triploid zygote.
D) a triploid embryo and a diploid endosperm.
E) a diploid zygote and a triploid endosperm.
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A) Two egg cells are fertilized within each ovule.
B) A sperm nucleus fuses with an egg cell and a sperm nucleus fuses with polar nuclei.
C) Two sperm are required for fertilization of one egg cell.
D) A flower can engage in both self pollination and cross pollination.
E) One sperm fertilizes the egg while two polar nuclei fuse with a second egg.
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A) Meiosis produces spores that are haploid.
B) Spores develop into the gametophyte generation.
C) The gametophyte produces eggs and sperm.
D) When the sperm fertilizes the egg, a zygote results that develops into the sporophyte.
E) The sporophyte generation produces spores by mitosis in structures called sporangia.
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A) bats.
B) bees.
C) the wind.
D) butterflies.
E) moths.
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A) sori
B) antheridia
C) archegonia
D) ovule
E) ovary
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A) ovary.
B) stigma.
C) anther.
D) filament.
E) style.
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A) They both have swimming sperm.
B) They both lack the gametophyte generation.
C) They both have a separate male and female gametophyte generation.
D) They both produce cones and flowers.
E) They both rely on pollinators.
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Multiple Choice
A) They generally do not require external water for reproduction.
B) Seed plants produce homospores.
C) The pollen grain later becomes the male gametophyte.
D) The female gametophyte is retained within the sporophyte.
E) The seed contains the embryonic sporophyte generation.
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A) protection of the embryo
B) evolution of vascular tissue
C) evolution of the seed
D) evolution of the flower
E) evolution of the rhizoid
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A) green algae.
B) tracheophytes.
C) rhyniophytes.
D) bryophytes.
E) tree ferns.
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A) apple
B) grapes
C) tomato
D) peas in a pod
E) celery
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A) mosses.
B) ferns.
C) liverworts.
D) ginkgoes.
E) gnetophyte.
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Multiple Choice
A) An egg is produced in an archegonium.
B) A sperm is produced in an antheridium.
C) The sperm is carried by the wind to the egg.
D) The eggs and sperm are produced on the same plant.
E) Eggs and sperm are produced by the gametophyte generation.
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Multiple Choice
A) diploid gametophyte; fern frond
B) diploid sporophyte; fern frond
C) haploid sporophyte; fern frond
D) haploid gametophyte; fern frond
E) diploid gametophyte; moss plant
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