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A pollen grain is a ______. |
male gametophyte |
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From the point of view of an angiosperm, what is the function of fruit? |
it is a mechanism for the dispersal of seeds |
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Gametophytes are ______; sporophytes are ______. |
haploid…diploid |
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Gametophytes reproduce ______. |
by producing sperms and eggs |
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In ______ the gametophyte is more obvious than the sporophyte. |
mosses |
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In angiosperms, the male gametophyte develops within ______. |
anthers |
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In angiosperms, what structures house female gametophytes? |
ovules |
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Much of the coal we use today came from ______ that lived during the Carboniferous. |
seedless vascular plants |
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Mutualistic associations of plant roots and fungi are called ______. |
mycorrhizae |
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Nearly all food plants are as ______. |
angiosperms |
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Nutritionally, all fungi are ______. |
chemoheterotrophs |
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Plants first moved onto land at least ______ years ago. |
475 million |
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Seeds develop from ______. |
ovules |
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The ______ helps plants retain water. |
cuticle |
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What are hyphae? |
threadlike filaments that make up fungal bodies |
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What global climatic change gave gymnosperms an advantage over ferns? |
the climate becoming cooler and drier |
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What important role do fungi play in many ecosystems? |
they decompose organic material |
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Which of the following correctly illustrates the sequence of the origin of modern groups of plants? |
bryophytes, ferns, gymnosperms, angiosperms |
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Which of the following is a component of the female structure of a flowering plant? |
stigma |
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Which of the following lack vascular tissue? |
mosses |
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Which of these adaptations to a terrestrial existence evolved most recently? |
seeds |
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Which structure of a flower traps pollen? |
stigma |
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______ were the first plants that did not require water for transferring sperm to eggs. |
gymnosperms |
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______ are seedless vascular plants. |
ferns |
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Why are gymnosperms "naked seed" plants? |
they have no ovaries |
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