How to use angiosperms in a sentence

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Sentence Examples High southern latitudes were not invaded by angiosperms until the end of the Cretaceous. Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes. Extant vascular plants range from clubmosses and ferns and their allies to complex seed plants, comprising gymnosperms and angiosperms. A major change in terrestrial vegetation took place in the Cretaceous with the evolution of the angiosperms, or flowering plants. The patterns of seasonal acclimation of photosynthetic capacity in angiosperms are more variable. In this paper, recent work on fruit type evolution in angiosperms is reviewed in relation to dispersal agents and habitat ecology. Sieve tube members occur in angiosperms, while sieve cells are found in other vascular plants. From there, other authors suggested that angiosperms moved into disturbed streamside habitats in mesic environments. Were the first angiosperms woody trees and shrubs, or were they small herbs? These data suggest that the enzyme is well conserved in plants and could play similar physiological roles in angiosperms and gymnosperms. The origins and evolution of marine angiosperms and hydrophily in the subclass were also estimated. One copy of this gene occurs in angiosperms, but two copies occur in the other four seed plant groups. Members of the family are unusual aquatic angiosperms growing on rocks in rapids and waterfalls in the world's tropics and subtropics. Many modern basal angiosperms grow on erosional substrates that are unlikely to be preserved in the sedimentological record. Like other seed plants, angiosperms are heterosporangiate, producing pollen and ovules in different organs. For comparison, monophyly of angiosperms and spermatophytes is supported by 532 and 631 positions, respectively. Copia group sequences have been found in diverse species, including single-cell algae, bryophytes, gymnosperms, and angiosperms. The angiosperms range from small leaves with chloranthoid teeth to larger leaves of the Ficophyllum type. Some angiosperms reproduce by apomixis, a natural way of cloning through seeds. In angiosperms, trichomes may occur on leaves, petals, stems, petioles, peduncles and seed coats, depending on the species. Show More Sentences Populations of marine angiosperms, or seagrasses, are at the basis of productive ecosystems thriving in shallow coastal areas around the world. These totals incorporate both terrestrial and aquatic angiosperms, together with gymnosperms, including the enigmatic gnetophyte Welwitschia mirabilis. Potential foods included not only pollinating insects of angiosperm flowers but also the pollens, nectars, fruits, seeds and foliage of angiosperms themselves. Bass suggested that the fossils might represent fructifications of angiosperms or gymnosperms, or perhaps both, but said formal identifications had not been made. Briefly, 144 species of angiosperms were selected using pro rata sampling, i.e. species were sampled in proportion to the number of species in each order. Graniferous tracheary elements, which may be either tracheids or vessel members, have been observed most often in the haustoria of root-parasitic angiosperms. A logical inference from this theory is that placenta in angiosperms should have amphicribral vascular bundle, just like that in a young branch. In certain vining angiosperms with compound leaves, some of the leaflets have modified into grapnel-like hooks—e.g., Tecoma radicans. A great variation in endosperm size is observed within angiosperms. The few examples of dichotomous branching among angiosperms are found only in some cacti, palms, and bird-of-paradise plants. The two modes of axillary branching in angiosperms are monopodial and sympodial. Apospory and apogamy occur in bryophytes, pteridophytes, and angiosperms, whereas parthenogenesis occurs in ferns and angiosperms. For a comparison of angiosperms with the other major groups of plants, see plant, bryophyte, fern, lower vascular plant, and gymnosperm. Our extensive literature search revealed this to be the first report of kin recognition in any spermatophyte other than angiosperms. The only angiosperms present in any quantity were the monocotyledonous fan palms. Some species of angiosperms have evolved to attract very specific pollinators. Fruits and seeds are the primary means by which angiosperms are dispersed, and the main agents for this dispersal are wind, water and animals. The angiosperms diversified immensely and turned the lands into colourful, fragrant realms. Stomatal size in fossil plants: evidence for polyploidy in majority of angiosperms. In most aquatic angiosperms, the parenchymatous cortex contains large intercellular spaces. Show More Sentences However, unlike many other angiosperms, lady's-slipper orchids do not produce nectar to attract visiting insects. Phenolic resins are today only produced by angiosperms, and tend to serve functional uses. Among the angiosperms, betalains are known only in the Caryophyllales, although they also occur in some Basidiomycetes. In contrast, the xylem of angiosperms comprises both tracheids and long, tubular vessels. Comparative ovule and megagametophyte development in Hydatellaceae and water lilies reveal a mosaic of features among the earliest angiosperms. Paleobiogeographic relationships of Andean angiosperms of Cretaceous to Pliocene age. Casparian band-like structure in the root hypodermis of some aquatic angiosperms. The pollen in angiosperms is transferred to the surface of the megasporophyll, whereas in gymnosperms it is brought to the micropyle of the ovule itself. Most typically, angiosperms are seed plants. They not only provide a source of food, but also generate nearly half of the oxygen in the atmosphere, derived from the photosynthetic process of planktonic microalgae and nearshore marine angiosperms and macroalgae. In Côte d'Ivoire and the Dominican Republic, tests with maize, using RCW from dicotyledonous angiosperms, produced yields four times greater than those of control plots. Apomictic phenomena occur also among many angiosperms. Endosperm is not formed in certain angiosperms. Between these two extremes lie angiosperms of almost every size and shape. Worldwide, foliage deciduousness in angiosperms is believed to have arisen in tropical species as a response to periodic drought. Dicotyledon, byname dicot, any member of the flowering plants, or angiosperms, that has a pair of leaves, or cotyledons, in the embryo of the seed. Dicotyledons and monocotyledons together make up the flowering plants, the angiosperms. Pollen grains from living pinophyte species produce pollen tubes, much like those of angiosperms. Furthermore, there is increasing evidence that jasmonate compounds are involved in the induction of various defense mechanisms in angiosperms and in conifers. They have determined the precise dates that angiosperms or flowering plants experienced two surges in growth during the Cretaceous period. Show More Sentences Research on cycad reproduction is also providing information on the early origins of insect pollination, long thought to have evolved along with the relatively more recent angiosperms, or flowering plants. Insect diversity preceded that of flowering plants, called angiosperms, by 120 million years, according to the report. First in structure, in the kinds of expression, and second in phylogeny, in the occurrence of these forms across the angiosperms. Infraspecific genetic variations of angiosperms in Asia is suggested to be investigated to determine the historical migration of angiosperms from tropical or subtropical regions to Taiwan. In angiosperms, or flowering plants, by contrast, the seeds are enclosed during development in a structure variously termed a pistil or a carpel, which is sometimes considered to represent an enfolded megasporophyll. The precise positional relationship of stem, leaf, and axillary bud is important to understanding the diversity of the shoot system in angiosperms. In following sections it describes archaea, bacteria, viruses, fungi, the protists, bryophytes, tracheophytes, gymnosperms and angiosperms. There are about twice as many monoecious and dioecious species in the Juan Fernandez Archipelago as there are in angiosperms as a whole. The only gnetophyte of temperate zone archaeobotanical significance is the genus Ephedra, and so the presence of vessels can often be taken to be indicative of angiosperms. Pollen grains possessing a much-reduced exine and elaborated intine are known to occur in 54 families of angiosperms and are nearly ubiquitous in Zingiberales. It is considered as the plesiomorphic condition in angiosperms. Phylogeny and ecology of mycotrophic achlorophyllous angiosperms. As in previous editions, angiosperms are emphasized, but some features of the vegetative parts of gymnosperms and seedless vascular plants are also considered. Descriptions of the histological patterns seen in sections of the pteridophyte shoot apex allowed closer comparisons with the zonate meristems of gymnosperms and angiosperms. Trichomes of the root in vascular cryptogams and angiosperms. Sympodial angiosperms with adventitious roots inevitably have patterns of vessel evolution different from those seen in monopodial woody angiosperms with taproots. The fossil decline appears to coincide with the emergence and dramatic rise of angiosperms, or flowering plants, which today account for up to 300,000 species, says Pryer. The issue has long preoccupied paleobotanists, with competing theories seeking to explain how angiosperms supplanted ferns and gymnosperms in many regions of the globe. All large groups in angiosperms such as magnoliids, monocots, basal eudicots, rosids and asterids show a patchy image with both positive and negative observations. Examples from Classical Literature The angiosperms that make up the majority of today s vegetation did not appear until the Cretaceous, and did not become the dominant flora until the Cenozoic. Find more words! 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What is the opposite of angiosperms? Words that rhyme with angiosperms What is the adjective for angiosperms? What is the noun for angiosperms? Use our Sentence Generator Nearby Words angiospermous angiosperm angiosarcoma angioplasty angioplasties angiopathy angiotensin angiotensinogen Angkor anglais anglaise angle 11-letter Words Starting With a an ang angi angio angios angiosp angiospe angiosper angiosperm