| 单词 | angiosperms |
| 释义 | BETA Examples ofangiospermsDictionary> Examples ofangiosperms angiospermsisn’t in the Cambridge Dictionary yet. You can help! Add a definition The macroscopic forms of aquatic vegetation denoted as aquatic macrophytes include macroalgae, some species of ferns andangiospermsinhabiting a wetland. From theCambridge English Corpus Environmental triggers of fertility are discussed and phenological patterns are compared with ferns andangiospermsfrom other habitats. From theCambridge English Corpus This contrasts with most other multicellular plant systems, including theangiosperms, where fertilisation occurs deep within the maternal tissue. From theCambridge English Corpus In seed heterogeneity, described in more than 200 species ofangiosperms, single individual plants produce seeds differing in their external appearance. From theCambridge English Corpus The great majority of whiteflies in existence today colonize only dicotyledonousangiospermsand a smaller, but significant, number feed on monocots, particularly grasses and palms. From theCambridge English Corpus The isolation of egg cells is difficult inangiospermsbecause the egg cell is deeply embedded within the ovule. From theCambridge English Corpus It has also been illustrated that for all but a few species,angiospermsare the principal host of these two arthropod groups. From theCambridge English Corpus However, there is little or no published information on toxicity of such species to terrestrial or aquaticangiosperms. From theCambridge English Corpus On the 10 smaller islands, a total of 22 species ofangiospermswere found, of which only four had coverage higher than 10%. From theCambridge English Corpus The majority ofangiosperms, however, possess bicellular pollen grains in which pollen contains the precursor generative cell. From theCambridge English Corpus Evolution of theangiosperms: calibrating the family tree. From theCambridge English Corpus A total of 40 species were present on the islands, 35 of which wereangiosperms. From theCambridge English Corpus Morphological adaptations to drought in seedlings of deciduousangiosperms. From theCambridge English Corpus Nevertheless, transitions to selfing are common acrossangiosperms, which suggests that the potentially negative consequences of reduced heterozygosity and genetic diversity are balanced by other factors, such as reproductive assurance. From theCambridge English Corpus In addition to the testa, the covering layers of endospermic seeds include the endosperm, which is usually triploid inangiosperms, with two-thirds of its genome of maternal origin. From theCambridge English Corpus While all vegetative tissues show components of both mechanisms, repair is more developed in the less complex groups of plants, and protection is the dominant process in the resurrectionangiosperms. From theCambridge English Corpus Ballooning larvae appear to feed on a wide variety of plants, mostlyangiosperms, but not exclusively so. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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