Which of the following is found inside a pollen grain?
  • the male gametophyte
  • Protection and dispersal of seeds
  • Double fertilization
  • ovulate cone
In flowers, pollen is produced in the __________.
  • anther
  • Cretaceous
  • seed coat
  • Taproot
Ovules are found within structure _____.
  • anther
  • B
  • the male gametophyte
  • Double fertilization
A plant is said to be cross-pollinated if __________.
  • pollen grains
  • anther and filament
  • The megaspore is haploid.The embryo is diploid.The gametophyte generation is haploid.The sporophyte generation is diploid.
  • pollen grains are transferred to a flower on a different plant
Dietary supplements and decongestants containing ephedrine have recently become more strongly regulated in the United States. Ephedrine is an extract of a plant belonging to which phylum?
  • They were homosporous.
  • Male gametophyte
  • Phylum Gnetophyta
  • Southern magnolia
In which phylum is the organism thought to be the world's oldest living tree?
  • Cycadophyta
  • ovulate cone
  • Coniferophyta
  • seed coat
The pollen of conifers is primarily dispersed by __________.
  • produces spores
  • pollen grains
  • micropyle
  • wind
Angiosperms are thought to have originated in which period?
  • produces spores
  • seed coat
  • Cretaceous
  • ovulate cone
Which of the following contains multiple gymnosperm ovules?
  • produces spores
  • ovulate cone
  • pollen grains
  • Male gametophyte
Can you identify the ploidy of different structures?
  • The megaspore is haploid.The embryo is diploid.The gametophyte generation is haploid.The sporophyte generation is diploid.
  • Cretaceous
  • the male gametophyte
  • Taproot
In gymnosperms, the seed coat develops from the integument. In angiosperms, the seed coat develops from the __________.
  • integuments
  • pollen grains
  • seed coat
  • stigma
A pea pod is formed from __________. A pea inside the pod is formed from __________.
  • ovulate cone
  • Birds with long beaks
  • an ovary; an ovule
  • stigma, style, and ovary
In which group is the sporophyte stage dominant in the alternation of generations?
  • Coniferophyta
  • All vascular plants
  • Male gametophyte
  • sporophyte embryo
Which of the following is enclosed within the pollen wall of a pollen grain?
  • an ovary; an ovule
  • Protection and dispersal of seeds
  • Coconut palm
  • Male gametophyte
At current rates of deforestation, tropical rain forests will be eliminated in __________ years.
  • stigma
  • 200
  • micropyle
  • wind
Which of these is unique to flowering plants?
  • the male gametophyte
  • anther and filament
  • Asexual reproduction
  • double fertilization
Which gymnosperm phylum below is characterized by large cones and fern-like leaves and thrived during the Mesozoic?
  • micropyle
  • Cycadophyta
  • Coconut palm
  • integuments
The dicots are now thought to be in the paraphyletic group, and the majority of dicot species are now placed in the eudicots. Which of the following is a member of a group that was included in the dicots but is now included in the eudicots?
  • Phylum Gnetophyta
  • Southern magnolia
  • pollen grains
  • They were homosporous.
A bright pink flower with deep floral tubes will most likely be pollinated by which mechanism?
  • Birds with long beaks
  • Male gametophyte
  • They were homosporous.
  • ovulate cone
Of the following, which is a difference in how reproduction occurs in gymnosperms compared to angiosperms?
  • Male gametophyte
  • produces spores
  • Only the sperm of angiosperms combine with two central cell nuclei to form triploid endosperm.
  • integuments
In flowering plants the integuments of the ovule develop into a(n) _____.
  • anther
  • micropyle
  • pollen grains
  • seed coat
After fertilization, the ovule develops into a seed. Can you match the parts of the ovule with the corresponding parts of the seed?
  • After fertilization of the ovule, the megaspore develops into the food supply of the mature seed.After fertilization of the ovule, the integument develops into the seed coat.After fertilization of the ovule, the fertilized egg develops into the embryo of the mature seed.
  • They were homosporous.
  • double fertilization
  • The sperm of some gymnosperms have flagella.
Which of the following is not a trait characteristic of monocots?
  • Coconut palm
  • Double fertilization
  • Taproot
  • Male gametophyte
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