For lower and higher plants do you know what groups have stomata, vascular tissues, seeds, heterospory...
For lower and higher plants do you know what groups have stomata, vascular tissues, seeds, heterospory or homospory, flowers? Do you know the flower parts, what nurses the embryo, what are the gametophytes in angiosperms?
Homework Answers
stomata: stomata are present in higher plants
Stomata are the pores on a leaf surface through which plants regulate the uptake of carbon dioxide (CO2) for photosynthesis against the loss of water via transpiration so stomata are present only in terrestrial plants (present in the sporophyte( gymnosperms and angiosperms) generation of all land plant groups except liverworts.
vascular tissues: vascular tissues are present in plants including the clubmosses, horsetails, ferns, gymnosperms (including conifers) and angiosperms (flowering plants).
seeds: seeds are resent in higher plants (gymnosperms and angiosperms)
heterospory or homospory: heterosporous life occurs in some pteridophytes and in all seed plants. homosporous life present in bryophytes.
flowers: flowers are present in higher plants ( angiosperm)
flowers have four main parts: petals, stamen (anther and filament), pistil (stigma, style, and ovary), and sepals.
endosperm nurses embryo in angiosperms.
male gametophyte in angiosperm: pollen grains( microspore)
female gametophyte in angiosperms: ovule (megaspore)
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