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Biology II Unit 3
Terms in this set (28)
The ancestors of land plants were probably ___________ that lived in ____________.
green algae similar to charophytes; coastal marshes or lake fringes
Gas exchange in most land plants occurs through structures called _______
A growth-producing region of cell division, known as a/an _______, is found near the tips of stems and roots.
in plants, the vascular tissue made of dead cells that transport water and minerals from the roots is called
in plants, the vascular tissue that consists of living cells that distribute sugars throughout the plant is called
in all plants, the zygote and earliest stages of developing embryo are
attached to and nourished by the parent plant
Mosses belong to the group of plants known as the
ferns have well-developed vascular ________
tissues, roots, and stems
the majority of plant species today are
which of the following characteristics tends to limit bryophytes and seedless vascular plants to habitats that are relatively moist?
presence of flagellated sperm
which of the following options correctly represents the most likely sequence of the evolution of plants from earliest to most recent?
bryophytes, seedless vascular plants, gymnosperms, angiosperms
the type of life cycle seen in plants is called
alternation of generations
the alternation of generations in a plant life cycle is characterized by
diploid sporophytes that produce spores by meiosis alternate with haploid gametophytes that produce gametes by mitosis
the dominant stage of moss life cycle is the
ferns and mosses are similar because both have
in a moss, most of the plants that we see are_____, and in a fern, the most dominant stage is the_______
which of the following organisms has a dominant sporophyte generation and a free-living gametophyte generation?
about 95% of all modern plant species have
a dominant sporophyte in their life cycle
during the Carboniferous period, photosynthesis in immense swamp forests removed _____ from the atmosphere, which produced a drier, cooler global climate and promoted the success of ______
carbon dioxide; seed plants
the incomplete decay of dead plants during the Carboniferous period led to the
formation of coal
which part of the life cycle does a pollen grain represent?
a male gametophyte
which of the following represents the male gametophyte of a conifer?
which of the following plants has a dominant sporophyte generation and a seed, but no fruit?
the ____ represents the sporophyte generationof a conifer, and the _____ produces gametophytes
twp characteristics shared by gymnosperms and angiosperms that are absent from earlier plant groups and represent key adaptations to life on dry land are
pollen and seeds
the ____ is the protective chamber that houses the ovule and later matures to become the fruit
in angiosperms, pollen grains develop in the ____ and land on the _____
to cross-fertilize flowers A and B, one would first remove flower A's immature ____ and later transfer pollen from lower B to flower A's ______
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